msm7x27a:  Enables support for eMMC boot.

Change-Id: Ib9f7b313ed17d84c50982d77adf9b8ef0bd1ddc6
diff --git a/platform/msm7x27a/include/platform/iomap.h b/platform/msm7x27a/include/platform/iomap.h
index 963d9ba..6b3b441 100644
--- a/platform/msm7x27a/include/platform/iomap.h
+++ b/platform/msm7x27a/include/platform/iomap.h
@@ -47,5 +47,6 @@
 #define MSM_SHARED_BASE 0x00100000
 
 #define MSM_SDC1_BASE   0xA0400000
+#define MSM_SDC3_BASE   0xA0600000
 
 #endif