measurement: use LOGPLCHAN() macro in lchan_meas_check_compute()
measurement: use LOGPLCHAN() macro in lchan_meas_check_compute()

Change-Id: Ia73fd766ddce3fd03d0f45b72cb2d056fae781fc

osmocom/osmo-bts,osmocom/osmo-bts,osmocom/osmo-bts