BTS_Tests: add TC_meas_res_speech_{tchf,tchh}_sapi3()

The idea behind these test cases is to make sure that osmo-bts
does send RSL MEASurement RESult messages regardless of what
was received on SACCH: RR Measurement Report or SAPI=3 data.

Change-Id: I7d17d6e5f413f2de78db944f23ad731b81ad24cf
1 file changed