BtHelper: handle BT crash

Wrapped the calls to the BT proxies with try/catch as the notification that a profile disconnected can happen while the proxy is used

Bug:351925855
Test: BT crash case in bug

Change-Id: Ied1c5e064c25153c263869c61125a227f9c4a2b8
Signed-off-by: yaoliang1 <yaoliang1@xiaomi.com>