Blackfin: adi config: add a hook for boards to append the env

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

include/configs/bfin_adi_common.h

@@ -231,10 +231,14 @@
 #else
 # define NETWORK_ENV_SETTINGS
 #endif
+#ifndef BOARD_ENV_SETTINGS
+# define BOARD_ENV_SETTINGS
+#endif
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	NAND_ENV_SETTINGS \
 	NETWORK_ENV_SETTINGS \
-	FLASHBOOT_ENV_SETTINGS
+	FLASHBOOT_ENV_SETTINGS \
+	BOARD_ENV_SETTINGS
 
 /*
  * Network Settings