Explicitly set LOCAL_MODULE_TARGET_ARCH

This avoids conflict when we have x86+arm multilib build.

Bug: 27526885
Change-Id: I7d5daf83faafa81311aec0e791646552b5e06175
diff --git a/Android.build_one.mk b/Android.build_one.mk
index b801e06..cb5de07 100644
--- a/Android.build_one.mk
+++ b/Android.build_one.mk
@@ -32,6 +32,8 @@
 
 LOCAL_MODULE := $(vg_local_module)-$(vg_local_arch)-linux
 
+LOCAL_MODULE_TARGET_ARCH := $(vg_local_arch)
+
 LOCAL_SRC_FILES := $(vg_local_src_files)
 
 LOCAL_C_INCLUDES := $(common_includes) $(vg_local_c_includes)
@@ -74,4 +76,3 @@
 endif
 
 include $(BUILD_$(vg_local_target))
-