msm8x60: Configure MMU to enable caching

Change-Id: Ie07e87f00d3bc6fd2ebe4348427453fba46b8395
diff --git a/platform/msm7x27a/platform.c b/platform/msm7x27a/platform.c
index e06618b..bda2652 100644
--- a/platform/msm7x27a/platform.c
+++ b/platform/msm7x27a/platform.c
@@ -78,3 +78,11 @@
 	fbcon_setup(fb_config);
 #endif
 }
+
+void platform_uninit(void)
+{
+	platform_uninit_timer();
+#if DISPLAY_SPLASH_SCREEN
+	display_shutdown();
+#endif
+}