Fix Framework core tests import of android-common.

android.database.CursorWindowTest#testWriteCursorToWindow (and possibly other
tests) were was failing because it couldn't locate a android-common class.

Fix is to include android-common as a static library, as opposed to a runtime
library.

Change-Id: Iae50cf409e76a85ee79e4af71e9b903d18630078