MGCP_Test: fix TC_dlcx_wildcarded

When the final condition of the testcase is verified through statsd,
there may be still (invalid) data from a previous measurement in the
statsd pipeline, querying the stats once before verifying the actual
stats fixes the problem.

Change-Id: I5fe18e433b32c364778b515ed37fcbcf443b3cb3
Related: OS#5572
1 file changed