Fix permissions missing in AOSP build

The voicemail module permissions are in a different manifest, and was
not merged.

Test: manual VVM smoke test
Change-Id: I00c7abf16a5ed40d2d3b0e26463663e60fc8b05f
Fixes: 38421210
diff --git a/Android.mk b/Android.mk
index f46e4d8..49cb3e4 100644
--- a/Android.mk
+++ b/Android.mk
@@ -140,6 +140,7 @@
 	$(BASE_DIR)/incallui/video/protocol/AndroidManifest.xml \
 	$(BASE_DIR)/incallui/wifi/AndroidManifest.xml \
 	$(BASE_DIR)/voicemail/impl/AndroidManifest.xml \
+	$(BASE_DIR)/voicemail/permissions.xml \
 
 
 # Merge all manifest files.
@@ -426,4 +427,4 @@
 
 include $(BUILD_PREBUILT)
 
-include $(CLEAR_VARS)
\ No newline at end of file
+include $(CLEAR_VARS)