arm: trats2: Set mmcdev directly

Only this platform sets mmcdev via CONFIG_MMC_DEFAULT_DEV so we
hard-code that default directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/trats2.h b/include/configs/trats2.h
index 0aa331e..4d39b40 100644
--- a/include/configs/trats2.h
+++ b/include/configs/trats2.h
@@ -81,7 +81,7 @@
 		"${kernelname}\0" \
 	"loaddtb=ext4load mmc ${mmcdev}:${mmcbootpart} ${fdtaddr} " \
 		"${fdtfile}\0" \
-	"mmcdev=" __stringify(CONFIG_MMC_DEFAULT_DEV) "\0" \
+	"mmcdev=0\0" \
 	"mmcbootpart=2\0" \
 	"mmcrootpart=5\0" \
 	"opts=always_resume=1\0" \