octeontx2-af: Free NIX_AF_INT_VEC_GEN interrupt too

commit 86dbed182cdcb151c140455380bd04b6f97c624c from
git@git.assembla.com:cavium/WindRiver.linux.git

The RVU NIX block General Interrupt vector,
NIX_AF_INT_VEC_GEN is not being freed currently.
Free it by simplyfing the logic in rvu_nix_unregister_interrupts
function. Also publish the rvu devlink params otherwise
devlink params will not be functional.

Fixes: 5ed66306 ("octeontx2-af: Add devlink health reporters for NIX")
Change-Id: Ied4c908509263061502a61c6d3375d1d7161a866
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/102700


Reviewed-by: George Cherian <gcherian@marvell.com>
Tested-by: Linu Cherian <lcherian@marvell.com>
[RQ: Drop devlink_params_publish() as it's useless.]

aaa
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>