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/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
index e3a0f26..474dca7 100644
--- a/board/davinci/da8xxevm/da850evm.c
+++ b/board/davinci/da8xxevm/da850evm.c
@@ -226,8 +226,8 @@
 
 const int lpsc_size = ARRAY_SIZE(lpsc);
 
-#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
-#define CONFIG_DA850_EVM_MAX_CPU_CLK	300000000
+#ifndef CFG_DA850_EVM_MAX_CPU_CLK
+#define CFG_DA850_EVM_MAX_CPU_CLK	300000000
 #endif
 
 #define REV_AM18X_EVM		0x100
@@ -245,7 +245,7 @@
 u32 get_board_rev(void)
 {
 	char *s;
-	u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK;
+	u32 maxcpuclk = CFG_DA850_EVM_MAX_CPU_CLK;
 	u32 rev = 0;
 
 	s = env_get("maxcpuclk");