bts: Ignore first MEAS REP as it often contains bogus values

The first measurement report typically has bad performance as
it contains measurements taken before the MS actually started
to transmit on it.  Let's make sure we only validate all but
the first MEAS REP

Change-Id: I5edfdca0c2b5c63073dca7f12f9c0d447e37995c
1 file changed