ksp5012: gps: build gps again

The gps/Android.mk module flag changed to optional, but no calls were made
to invoke it. This change makes the gps.pcm049 library build and install
once again.

Signed-off-by: Russell Robinson <rrobinson@phytec.com>
ksp5012: implement fpga version check

Signed-off-by: Russell Robinson <rrobinson@phytec.com>