wil6210: abort properly in cfg suspend

On-going operations were not aborted properly
and required locks were not taken.

Change-Id: I6608b980efd5bab4dfdf5f723d0eb3e14119c083
Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: 144a12a6d83f3ca34ddefce5dee4d502afd2fc5b
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git


[merez@codeaurora.org: fix merge conflicts]
Signed-off-by: Maya Erez <merez@codeaurora.org>