adbd: make libadbd_services cc_library again.

For currently unknown reasons, sideloading is broken with
libadbd_services as a cc_library_static.

Partial revert of commit a9b62d54.

Bug: http://b/151056300
Test: xunchang@ tested manually
Change-Id: Iaffad9c476ba0adcffc5db512ba4a7ee0fb5cb22