pci_endpoint: Remove <common.h> and add needed includes

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

drivers/pci_endpoint/pci_ep-uclass.c

@@ -11,7 +11,6 @@
 
 #define LOG_CATEGORY UCLASS_PCI_EP
 
-#include <common.h>
 #include <dm.h>
 #include <errno.h>
 #include <asm/global_data.h>

drivers/pci_endpoint/pcie-cadence-ep.c

@@ -4,7 +4,6 @@
  * Written by Ramon Fried <ramon.fried@gmail.com>
  */
 
-#include <common.h>
 #include <dm.h>
 #include <errno.h>
 #include <pci_ep.h>

drivers/pci_endpoint/sandbox-pci_ep.c

@@ -3,7 +3,6 @@
  * Copyright (c) 2019 Ramon Fried <ramon.fried@gmail.com>
  */
 
-#include <common.h>
 #include <dm.h>
 #include <errno.h>
 #include <pci.h>