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/vme8349.h b/include/configs/vme8349.h
index fe2bc1d..4129bb4 100644
--- a/include/configs/vme8349.h
+++ b/include/configs/vme8349.h
@@ -545,7 +545,7 @@
 #endif
 
 #define CONFIG_HOSTNAME		VME8349
-#define CONFIG_ROOTPATH		/tftpboot/rootfs
+#define CONFIG_ROOTPATH		"/tftpboot/rootfs"
 #define CONFIG_BOOTFILE		uImage
 
 #define CONFIG_LOADADDR		800000	/* def location for tftp and bootm */