common: board_r: Drop initr_pci_ep wrapper

Add a return value to pci_ep_init and use it directly in the
post-relocation init sequence, rather than using a wrapper stub.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pci_endpoint/pci_ep-uclass.c b/drivers/pci_endpoint/pci_ep-uclass.c
index 38a5f08..aa89701 100644
--- a/drivers/pci_endpoint/pci_ep-uclass.c
+++ b/drivers/pci_endpoint/pci_ep-uclass.c
@@ -210,7 +210,7 @@
 	.flags		= DM_UC_FLAG_SEQ_ALIAS,
 };
 
-void pci_ep_init(void)
+int pci_ep_init(void)
 {
 	struct udevice *dev;
 
@@ -219,4 +219,6 @@
 	     uclass_next_device_check(&dev)) {
 		;
 	}
+
+	return 0;
 }