common: cosmetic: CONFIG_ROOTPATH checkpatch compliance

Remove MK_STR from places that consume CONFIG_ROOTPATH to force all definitions to be string literals.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/configs/bct-brettl2.h b/include/configs/bct-brettl2.h
index 72d0948..e8e2667 100644
--- a/include/configs/bct-brettl2.h
+++ b/include/configs/bct-brettl2.h
@@ -72,7 +72,7 @@
 #define CONFIG_IPADDR		192.168.233.224
 #define CONFIG_GATEWAYIP	192.168.233.1
 #define CONFIG_SERVERIP		192.168.233.53
-#define CONFIG_ROOTPATH		/romfs/brettl2
+#define CONFIG_ROOTPATH		"/romfs/brettl2"
 /* Uncomment next line to use fixed MAC address */
 /* #define CONFIG_ETHADDR	02:80:ad:20:31:e8 */
 #endif