Merge framework-connectivity impl and stub targets

Instead of using api_only: true, use a single java_sdk_library to
generate both framework-connectivity stubs and
framework-connectivity.impl.

Bug: 183600168
Test: m
Merged-In: I76d7cf1ba31a3f38ae6b9facbf1b668860c8c165
Change-Id: Icfe492943308ad35069b94a07d3cf80498739b66
1 file changed