common: Move ARM cache operations out of common.h

These functions are CPU-related and do not use driver model. Move them to
cpu_func.h

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

lib/efi_loader/efi_image_loader.c

@@ -8,6 +8,7 @@
  */
 
 #include <common.h>
+#include <cpu_func.h>
 #include <efi_loader.h>
 #include <pe.h>
 

lib/efi_loader/efi_runtime.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <cpu_func.h>
 #include <dm.h>
 #include <elf.h>
 #include <efi_loader.h>