bluetoothtbd common library reconfiguration

This patch change how code in service/common directory is compiled. Up
till now, .cc files were generated from .aidl, and the .cc files were
build for each target that used them. From now on, static lib is build
from .aidl and .cc files, and it is included into all targets that
require them.

This reduces build steps from around 1240 to 849.

Test: compilation test
Change-Id: Iebaf0c75497bc435dcc013be09a1f82e75547aa3