wil6210: use wil_fw_error_recovery()

Use function wil_fw_error_recovery() instead of inline equivalent code

Change-Id: I16e2eafb1ffdcb49fcfaae75dd753d55b2e91613
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: 8ad6600fbdd699f0d7a3ec250d20256a7ec98889
Git-repo: https://github.com/kvalo/ath.git


Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>