wil6210: align wil log functions to wil_dbg_ratelimited implementation

Change the implementation of wil log functions for consistency
with __wil_dbg_ratelimited.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: 8fe2a5f9f9b5a2f26d9d31d350b2323aee13067a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git


CRs-Fixed: 1015627
[merez@coreaurora.org: fixed merge conflicts]
Change-Id: Ie7e073d672a561b768cb62f1e39af24c1d7c3322
Signed-off-by: Maya Erez <merez@codeaurora.org>