fakehwc, libvr_hwc-hal: ComposerBase is moved

ComposerBase is moved to another library and is renamed to
ComposerHal.

Test: builds
Change-Id: Ie9159b9d83558587d75aa6d0ad89a1848a281d01
diff --git a/services/surfaceflinger/tests/fakehwc/Android.bp b/services/surfaceflinger/tests/fakehwc/Android.bp
index 8e0ba83..63da4e2 100644
--- a/services/surfaceflinger/tests/fakehwc/Android.bp
+++ b/services/surfaceflinger/tests/fakehwc/Android.bp
@@ -35,6 +35,7 @@
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
+        "android.hardware.graphics.composer@2.1-hal",
         "libsurfaceflinger_headers",
     ],
-}
\ No newline at end of file
+}