msm7627: Enable eMMC boot support

Change-Id: Ieda593ce52f87598c869e4270d55670889805d72
diff --git a/platform/msm7k/rules.mk b/platform/msm7k/rules.mk
old mode 100755
new mode 100644
index d073796..b5507a3
--- a/platform/msm7k/rules.mk
+++ b/platform/msm7k/rules.mk
@@ -4,6 +4,9 @@
 ARM_CPU := arm1136j-s
 CPU := generic
 
+MMC_SLOT := 1
+DEFINES += MMC_SLOT=$(MMC_SLOT)
+
 INCLUDES += -I$(LOCAL_DIR)/include
 
 MODULES += dev/fbcon