Move libtinyxml to vendor partition

No system component is using this, but some vendor-specific libs are.
Moving this to vendor partition so that we don't need to shipt this
library in the generic system image.

Bug: 36856960
Test: libtinyxml.so in vendor parititon
Change-Id: I1d7785bbedbaee6af1a39ed8d6ebc441549d7b2d

Android.mk

diff --git a/Android.mk b/Android.mk
index 92fdf5b..5d381e0 100644
--- a/Android.mk
+++ b/Android.mk
@@ -58,6 +58,8 @@
 
 LOCAL_MODULE:= libtinyxml
 
+LOCAL_VENDOR_MODULE := true
+
 LOCAL_CFLAGS+= $(commonFlags)
 
 LOCAL_SHARED_LIBRARIES := \