gd: hci: Ignore unexpected status events

For some reason, on some old devices, the controller will report a
remote to support SNIFF_SUBRATING even when it does not. Just ignore the
error here (the status event comes from the failure response).

Change-Id: Ifb9a65fd77f21d15a8dc1ced9240194d38218ef6
Signed-off-by: Mohammad Hasan Keramat J <ikeramat@protonmail.com>