Disable sniff mode when AVDTP start

To avoid ACL link go into sniff mode during a2dp streaming by remote
request, disable sniff mode by link policy when AVDTP start, and
enable when AVDTP suspend, stop or disconnect.

Tag: #compatibility
Bug: 193206591
Test: audio resume after MO/MT call
Change-Id: I0af3223e0722b0343e8d091985e3e23606104268
Merged-In: I0af3223e0722b0343e8d091985e3e23606104268