rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/common/cmd_bedbug.c b/common/cmd_bedbug.c
index 94f7e08..3e597f9 100644
--- a/common/cmd_bedbug.c
+++ b/common/cmd_bedbug.c
@@ -218,7 +218,7 @@
 	int flag;		/* Command flags          */
 	int rc = 0;		/* Result from run_command */
 	char prompt_str[20];	/* Prompt string          */
-	static char lastcommand[CFG_CBSIZE] = { 0 };	/* previous command */
+	static char lastcommand[CONFIG_SYS_CBSIZE] = { 0 };	/* previous command */
 	/* -------------------------------------------------- */
 
 	if (bug_ctx.clear)