Use new mutex objet in SupplicantStaIfaceHalCallback

Currently when creating SupplicantStaIfaceHalCallback we are passing a
mutext same as the Wifi main thread. As the
SupplicantStaIfaceHalCallback is called from binder thread we need to
use a different mutex object to avoid the dead lock.

Bug: 213097845
Test: Manual tests.

Merged-In: I33d927da3394bc293718165b6c0d4069b06eb3e1
Change-Id: I33d927da3394bc293718165b6c0d4069b06eb3e1
1 file changed