Enable surface for host

Bug: 117921091
Test: all tests should pass
Change-Id: I222ddcfda80c96726d96158173fcc1015abf7d36
diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 2cc6857..2bbb0ee 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -187,3 +187,11 @@
     "tests",
     "tools",
 ]
+
+filegroup {
+    name: "libui_host_common",
+    srcs: [
+        "Rect.cpp",
+        "PixelFormat.cpp"
+    ],
+}