COMMON: Use __stringify() instead of MK_STR()

Kill multiple occurances and redeclaration of MK_STR
in favor of __stringify().

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/arch/blackfin/include/asm/config-pre.h b/arch/blackfin/include/asm/config-pre.h
index 4ce67d4..be5687c 100644
--- a/arch/blackfin/include/asm/config-pre.h
+++ b/arch/blackfin/include/asm/config-pre.h
@@ -10,8 +10,6 @@
 #define __ASM_BLACKFIN_CONFIG_PRE_H__
 
 /* Misc helper functions */
-#define XMK_STR(x) #x
-#define MK_STR(x) XMK_STR(x)
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 
 /* Bootmode defines -- your config needs to select this via CONFIG_BFIN_BOOT_MODE.
diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c
index c380d27..6a9282c 100644
--- a/arch/blackfin/lib/board.c
+++ b/arch/blackfin/lib/board.c
@@ -209,7 +209,7 @@
 	gd->bd = bd;
 
 	bd->bi_r_version = version_string;
-	bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
+	bd->bi_cpu = __stringify(CONFIG_BFIN_CPU);
 	bd->bi_board_name = BFIN_BOARD_NAME;
 	bd->bi_vco = get_vco();
 	bd->bi_cclk = get_cclk();