wil6210: do not start regular scan on stopped p2p device

The driver should not allow starting any type of scan on a stopped
P2P device. Current implementation only checked social scan.

Change-Id: I67d92b0bdb4549681e3d08a256b1798fdaeb0939
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: 4a0e45a78328957b012f554fb2ffcd5c69fe418a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git


Signed-off-by: Maya Erez <merez@codeaurora.org>