msm_shared: Add shutdown detect compilation for MSM8916

Add the shutdown detection support for MSM8916. It is used to
support the feature of long press power key.

Change-Id: I6201cb9efd191d54098e51b1a964d96f8791fa35
diff --git a/platform/msm_shared/rules.mk b/platform/msm_shared/rules.mk
index ea5d9d3..cdec13f 100755
--- a/platform/msm_shared/rules.mk
+++ b/platform/msm_shared/rules.mk
@@ -176,7 +176,8 @@
 		$(LOCAL_DIR)/display.o \
 		$(LOCAL_DIR)/mipi_dsi.o \
 		$(LOCAL_DIR)/mipi_dsi_phy.o \
-		$(LOCAL_DIR)/mipi_dsi_autopll.o
+		$(LOCAL_DIR)/mipi_dsi_autopll.o \
+		$(LOCAL_DIR)/shutdown_detect.o
 endif