qcacld-3.0: Reset wait for hw mode change event

Hw mode change in progress is set after the set_hw_mode
command is queued in serialization. Its not reset in below
cases:
Active command timeout case, serialization command
cancelled case.

Before connect request is queued, if hw mode change is in
progress, there is 6 secs wait and if there is no hw mode
change response, connection failure. This causes subsequent
connection failures and there is no recovery.

Reset the wait for hw mode change event in serialization
command failure cases.

Change-Id: I716982f06198e9c3495685ddb158044778c4b1ff
CRs-Fixed: 3256424