PCI: cadence: Update cdns_pcie_writel() function signature

cdns_pcie_writel() writes a long value; change the value parameter type
from u16 to u32 to rectify the function signature and related behaviour.

Signed-off-by: Alan Douglas <[e-mail]>
[[e-mail]: updated commit log]
Signed-off-by: Lorenzo Pieralisi <[e-mail]>

drivers/pci/controller/pcie-cadence.h

···
 }
 
 static inline void cdns_pcie_ep_fn_writel(struct cdns_pcie *pcie, u8 fn,
-					  u32 reg, u16 value)
+					  u32 reg, u32 value)
 {
 	writel(value, pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg);
 }