PCI: endpoint: Drop superfluous pci_epc_features initialization

struct pci_epc_features has static storage duration, so all struct members
are zero initialized implicitly. Thus, remove explicit zero initialization
for features that are *not* supported so we don't have to touch existing
drivers as new features are added.

Signed-off-by: Niklas Cassel <[e-mail]>
[bhelgaas: squash together, expand commit log rationale]
Signed-off-by: Bjorn Helgaas <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]> #rcar-ep, rcar-gen4
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drivers/pci/controller/cadence/pcie-cadence-ep.c

···
 }
 
 static const struct pci_epc_features cdns_pcie_epc_vf_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
 	.msix_capable = true,
 	.align = 65536,
 };
 
 static const struct pci_epc_features cdns_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
 	.msix_capable = true,
 	.align = 256,

drivers/pci/controller/dwc/pci-dra7xx.c

···
 static const struct pci_epc_features dra7xx_pcie_epc_features = {
 	.linkup_notifier = true,
 	.msi_capable = true,
-	.msix_capable = false,
 };
 
 static const struct pci_epc_features*

drivers/pci/controller/dwc/pci-imx6.c

···
 }
 
 static const struct pci_epc_features imx8m_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
-	.msix_capable = false,
 	.bar[BAR_1] = { .type = BAR_RESERVED, },
 	.bar[BAR_3] = { .type = BAR_RESERVED, },
 	.bar[BAR_4] = { .type = BAR_FIXED, .fixed_size = SZ_256, },
···
 };
 
 static const struct pci_epc_features imx8q_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
-	.msix_capable = false,
 	.bar[BAR_1] = { .type = BAR_RESERVED, },
 	.bar[BAR_3] = { .type = BAR_RESERVED, },
 	.bar[BAR_5] = { .type = BAR_RESERVED, },

drivers/pci/controller/dwc/pci-keystone.c

···
 }
 
 static const struct pci_epc_features ks_pcie_am654_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
 	.msix_capable = true,
 	.bar[BAR_0] = { .type = BAR_RESERVED, },

drivers/pci/controller/dwc/pcie-artpec6.c

···
 }
 
 static const struct pci_epc_features artpec6_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
-	.msix_capable = false,
 };
 
 static const struct pci_epc_features *

drivers/pci/controller/dwc/pcie-designware-plat.c

···
 }
 
 static const struct pci_epc_features dw_plat_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
 	.msix_capable = true,
 };

drivers/pci/controller/dwc/pcie-dw-rockchip.c

···
 	.linkup_notifier = true,
 	.msi_capable = true,
 	.msix_capable = true,
-	.intx_capable = false,
 	.align = SZ_64K,
 	.bar[BAR_0] = { .type = BAR_RESIZABLE, },
 	.bar[BAR_1] = { .type = BAR_RESIZABLE, },
···
 	.linkup_notifier = true,
 	.msi_capable = true,
 	.msix_capable = true,
-	.intx_capable = false,
 	.align = SZ_64K,
 	.bar[BAR_0] = { .type = BAR_RESIZABLE, },
 	.bar[BAR_1] = { .type = BAR_RESIZABLE, },

drivers/pci/controller/dwc/pcie-keembay.c

···
 }
 
 static const struct pci_epc_features keembay_pcie_epc_features = {
-	.linkup_notifier	= false,
 	.msi_capable		= true,
 	.msix_capable		= true,
 	.bar[BAR_0]		= { .only_64bit = true, },

drivers/pci/controller/dwc/pcie-qcom-ep.c

···
 static const struct pci_epc_features qcom_pcie_epc_features = {
 	.linkup_notifier = true,
 	.msi_capable = true,
-	.msix_capable = false,
 	.align = SZ_4K,
 	.bar[BAR_0] = { .only_64bit = true, },
 	.bar[BAR_1] = { .type = BAR_RESERVED, },

drivers/pci/controller/dwc/pcie-rcar-gen4.c

···
 }
 
 static const struct pci_epc_features rcar_gen4_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
-	.msix_capable = false,
 	.bar[BAR_1] = { .type = BAR_RESERVED, },
 	.bar[BAR_3] = { .type = BAR_RESERVED, },
 	.bar[BAR_4] = { .type = BAR_FIXED, .fixed_size = 256 },

drivers/pci/controller/dwc/pcie-tegra194.c

···
 
 static const struct pci_epc_features tegra_pcie_epc_features = {
 	.linkup_notifier = true,
-	.msi_capable = false,
-	.msix_capable = false,
 	.bar[BAR_0] = { .type = BAR_FIXED, .fixed_size = SZ_1M,
 			.only_64bit = true, },
 	.bar[BAR_1] = { .type = BAR_RESERVED, },

drivers/pci/controller/pcie-rcar-ep.c

···
 }
 
 static const struct pci_epc_features rcar_pcie_epc_features = {
-	.linkup_notifier = false,
 	.msi_capable = true,
-	.msix_capable = false,
 	/* use 64-bit BARs so mark BAR[1,3,5] as reserved */
 	.bar[BAR_0] = { .type = BAR_FIXED, .fixed_size = 128,
 			.only_64bit = true, },

drivers/pci/controller/pcie-rockchip-ep.c

···
 static const struct pci_epc_features rockchip_pcie_epc_features = {
 	.linkup_notifier = true,
 	.msi_capable = true,
-	.msix_capable = false,
 	.intx_capable = true,
 	.align = ROCKCHIP_PCIE_AT_SIZE_ALIGN,
 };