config: Add link to libhardware
config: Add link to libhardware

The link against libhardware was missing from Android.mk.

Change-Id: I17a4e4161aaff81781b4eaf1093d2d62408609e6
Signed-off-by: Richard Fitzgerald <22ee0097135072451429b5ac45630d52779cd49b@opensource.cirrus.com>

CirrusLogic/tinyhal,CirrusLogic/tinyhal,CirrusLogic/tinyhal