pci: pcie_cdns_ti: Include linux/sizes.h header

Driver uses macro SZ_4G to configure inbound base address register.
The macro is used without including the header file in which it is
defined. Fix this.

Fixes: 59ad5480098 ("pci: Add TI K3 Cadence PCIe Controller")
Signed-off-by: Hrushikesh Salunke <h-salunke@ti.com>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
diff --git a/drivers/pci/pcie_cdns_ti.c b/drivers/pci/pcie_cdns_ti.c
index 41469a1..e5bcc6e 100644
--- a/drivers/pci/pcie_cdns_ti.c
+++ b/drivers/pci/pcie_cdns_ti.c
@@ -19,6 +19,7 @@
 #include <linux/io.h>
 #include <linux/ioport.h>
 #include <linux/log2.h>
+#include <linux/sizes.h>
 #include <power-domain.h>
 #include <regmap.h>
 #include <syscon.h>