ASoC: wcd-mbhc: fix inconsistent detection of euro headset

Cross connection sometimes gets detected late. The issue faced is
cable is reported as headset initially, cross connection is
detected later. But before confirming cross connection, playback
starts on headset, so checking for cross connection is not
confirmed. Cable remains reported as headset. So check for cross
connection just before reporting headset.

CRs-Fixed: 1028002
Change-Id: Ida4f277f13c9a193cd7c92063b99bcf1104f107e
Signed-off-by: Divya Ojha <dojha@codeaurora.org>