octeontx2-af: Dump hw register state on error

commit 9fa61264b15029be4a8a41ef74cb82b6c44d1e0a from
git@git.assembla.com:cavium/WindRiver.linux.git

This patch dumps the required hw register state on
SMQ flush failure. It also reset the AQ on error.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Change-Id: I2c30cc4b9c11936adb3ecb3284a8cb636123751a
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/115085


Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
[RQ: Remove unused variable.]
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>