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/cmd/ximg.c b/cmd/ximg.c
index 1c40fd2..60ed2c9 100644
--- a/cmd/ximg.c
+++ b/cmd/ximg.c
@@ -27,9 +27,9 @@
 #include <asm/cache.h>
 #include <asm/io.h>
 
-#ifndef CONFIG_SYS_XIMG_LEN
+#ifndef CFG_SYS_XIMG_LEN
 /* use 8MByte as default max gunzip size */
-#define CONFIG_SYS_XIMG_LEN	0x800000
+#define CFG_SYS_XIMG_LEN	0x800000
 #endif
 
 static int
@@ -52,7 +52,7 @@
 	size_t		fit_len;
 #endif
 #ifdef CONFIG_GZIP
-	uint		unc_len = CONFIG_SYS_XIMG_LEN;
+	uint		unc_len = CFG_SYS_XIMG_LEN;
 #endif
 	uint8_t		comp;