[msm7x30]: Turn off MDP before jumping to HLOS.

This change turns off mdp just before jumping to HLOS in LCDC mode.

Change-Id: Ic2e0029b47aa6ef7ce62bba65edd9954a7e49174
diff --git a/platform/msm7x30/platform.c b/platform/msm7x30/platform.c
index f3b8a6b..56852a4 100644
--- a/platform/msm7x30/platform.c
+++ b/platform/msm7x30/platform.c
@@ -114,3 +114,12 @@
     fbcon_setup(fb_cfg);
 #endif
 }
+
+void display_shutdown(void)
+{
+#if DISPLAY_TYPE_LCDC
+    /* Turning off LCDC */
+    lcdc_shutdown();
+#endif
+}
+