unit test fix for dcTracker and GsmCdmaCallTracker

1) fix the intermittent failure on GsmCdmaCallTracker by given more time
for state transition
2) fix the failure for DcTracker due to recent checkin b/29645680

Bug: 29645680
Bug: 25691379
Change-Id: I2676f2841b0081dc7eb8e1acf62048ac1f1242aa