PCI: exynos: Correct generic PHY usage

The proper initialization for generic PHYs is to call first phy_init(),
then phy_power_on().

While touching this, remove the phy_reset() call. It is just a left-over
from the obsoleted Exynos5440 support and the current exynos-pcie PHY
driver doesn't even support this function. It is also rarely used by other
drivers.

Link: https://lore.kernel.org/r/[e-mail]
Reported-by: Bjorn Helgaas <[e-mail]>
Signed-off-by: Marek Szyprowski <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Reviewed-by: Chanho Park <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>

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

···
 
 	exynos_pcie_assert_core_reset(ep);
 
-	phy_reset(ep->phy);
-	phy_power_on(ep->phy);
 	phy_init(ep->phy);
+	phy_power_on(ep->phy);
 
 	exynos_pcie_deassert_core_reset(ep);
 	exynos_pcie_enable_irq_pulse(ep);