Enable Trusty Gatekeeper@1.0

Previously we only installed the gatekeeper.trusty.so library, which is
insufficient to actually start Gatekeeper. We now also install the -impl
and -service wrappers.

Bug: 127700127
Test: Gatekeeper 1.0 VTS with Trusty running
Change-Id: Idd8d6a4e1e409c2a712dddfd92d5f9cf6b16b50c
1 file changed