Clear roam/BSS TM in progress flags for additional cases

Clear roam/BSS TM in progress flags for additional cases

It looks like the recently added roam_in_progress and
bss_trans_mgmt_in_progress flags could end up getting set, but not
cleared, in some cases. Make sure these get cleared on explicit
disconnection request and also in case the SME-in-driver path is used
(while that path does not really use these flags yet, it is better to
not allow them to be forgotten to be set should it be extended to cover
similar functionality).

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>