mmc: cmdq-host: add post halt helper after halt ack interrupt

After the CQE halt on some controllers need additional actions, before
wakeup of waiting thread.

Change-Id: I742baa48eb3f6eccf782d77a03aafe16ab7188f1
Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org>
[xiaonian@codeaurora.org: fixed trivial merge conflicts]
Signed-off-by: Xiaonian Wang <xiaonian@codeaurora.org>
2 files changed