Fix the reconnect issue in hfp client

The HFP client would not reconnect any more on collision scenario
as upper layer calls the connect API per 30s. which related with
CL of d338a642

Bug: 74518379

Test: Manual test for multiple incoming/outgoing HF connections
      between Android Wear and Handset

Signed-off-by: Kai Huang <huangkai1@huawei.com>

Change-Id: I445f3633165d8ec12f91bc5fe5a8217505318cff