Fix some module tags

There is no LOCAL_MODULES_TAGS. Fix by combining with LOCAL_MODULE_TAGS.

Change-Id: I1cacef2f8123af3632ff6a52aa62c2f2e15ac37d
diff --git a/Android.mk b/Android.mk
index 9555461..dfdff7d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -431,8 +431,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := libaosprecovery
-LOCAL_MODULE_TAGS := eng
-LOCAL_MODULES_TAGS = optional
+LOCAL_MODULE_TAGS := eng optional
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/libmincrypt/includes
 LOCAL_SRC_FILES = adb_install.cpp bootloader.cpp verifier.cpp mtdutils/mtdutils.c legacy_property_service.c
 LOCAL_SHARED_LIBRARIES += libc liblog libcutils libmtdutils