Add libext4 and libmincrypt to vold.

This accomodates verity changes, which now utilize these libraries.

Change-Id: I1ff8c012e972e245cf3e4bc3a02bef0989165d75
diff --git a/Android.mk b/Android.mk
index ba9b0a1..c7fc0df 100644
--- a/Android.mk
+++ b/Android.mk
@@ -36,7 +36,9 @@
 
 common_static_libraries := \
 	libfs_mgr \
-	libscrypt_static
+	libscrypt_static \
+	libmincrypt \
+	libext4_utils_static
 
 include $(CLEAR_VARS)