common: Drop part.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>

cmd/ab_select.c

@@ -3,8 +3,10 @@
  * Copyright (C) 2017 The Android Open Source Project
  */
 
+#include <common.h>
 #include <android_ab.h>
 #include <command.h>
+#include <part.h>
 
 static int do_ab_select(cmd_tbl_t *cmdtp, int flag, int argc,
 			char * const argv[])