Fix build with proguard

Add extra resource directories to fix proguard errors:
Warning: android.support.design.widget.CoordinatorLayout: can't find referenced class android.support.coreui.R$attr
...
Warning: android.support.v4.media.app.NotificationCompat$DecoratedMediaCustomViewStyle: can't find referenced class android.support.mediacompat.R$layout

Test: m TARGET_PRODUCT=full TARGET_BUILD_VARIANT=userdebug TARGET_BUILD_APPS=Gallery2
Change-Id: Idf556a2eea6af37a4f1f9e9cf337485ae228ff58
1 file changed