Fix BufferHubMetadata_test build on oc branch

By some reason in master branch the compiler could find unique_fd.h on
compiling, but in oc-dr1-daydream-dev it's complaining about it.

Test: m BufferHubMetadata -j (build passed)
Bug: none
Change-Id: I26e3e5288ec60f2c3d11d8416e563ef074eb553c
diff --git a/libs/ui/tests/Android.bp b/libs/ui/tests/Android.bp
index fcc6d37..18bbb3e 100644
--- a/libs/ui/tests/Android.bp
+++ b/libs/ui/tests/Android.bp
@@ -74,7 +74,12 @@
 cc_test {
     name: "BufferHubMetadata_test",
     header_libs: ["libbufferhub_headers", "libdvr_headers"],
-    shared_libs: ["libpdx_default_transport", "libui", "libutils"],
+    shared_libs: [
+        "libbase",
+        "libpdx_default_transport",
+        "libui",
+        "libutils",
+    ],
     srcs: ["BufferHubMetadata_test.cpp"],
     cflags: ["-Wall", "-Werror"],
 }