global: Finish CONFIG -> CFG migration

At this point, the remaining places where we have a symbol that is
defined as CONFIG_... are in fairly odd locations. While as much dead
code has been removed as possible, some of these locations are simply
less obvious at first. In other cases, this code is used, but was
defined in such a way as to have been missed by earlier checks.  Perform
a rename of all such remaining symbols to be CFG_... rather than
CONFIG_...

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/eets/pdu001/board.c b/board/eets/pdu001/board.c
index 648d77f..de224d4 100644
--- a/board/eets/pdu001/board.c
+++ b/board/eets/pdu001/board.c
@@ -62,8 +62,8 @@
  * To get the boot device from 'am33xx_spl_board_init' to
  * 'board_late_init' we therefore use a scratch register from the RTC.
  */
-#define CONFIG_SYS_RTC_SCRATCH0 0x60
-#define BOOT_DEVICE_SAVE_REGISTER (RTC_BASE + CONFIG_SYS_RTC_SCRATCH0)
+#define CFG_SYS_RTC_SCRATCH0 0x60
+#define BOOT_DEVICE_SAVE_REGISTER (RTC_BASE + CFG_SYS_RTC_SCRATCH0)
 
 #ifdef CONFIG_SPL_BUILD
 static void save_boot_device(void)