global: Migrate CONFIG_EXTRA_ENV_SETTINGS to CFG

Perform a simple rename of CONFIG_EXTRA_ENV_SETTINGS to CFG_EXTRA_ENV_SETTINGS

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/poplar.h b/include/configs/poplar.h
index c581055..6e8adf9 100644
--- a/include/configs/poplar.h
+++ b/include/configs/poplar.h
@@ -31,7 +31,7 @@
 					func(DHCP, dhcp, na)
 #include <config_distro_bootcmd.h>
 
-#define CONFIG_EXTRA_ENV_SETTINGS					\
+#define CFG_EXTRA_ENV_SETTINGS					\
 			"loader_mmc_blknum=0x0\0"			\
 			"loader_mmc_nblks=0x780\0"			\
 			"env_mmc_blknum=0xf80\0"			\