octeontx2-pf: Add support for offload tc with skbedit mark action

commit 9fd415b5b4fbe69844f11ee1f75b63ca1ae33c55 from
git@git.assembla.com:cavium/WindRiver.linux.git

    Support offloading of skbedit mark action.

    For example, to mark with 0x0008, with dest ip 60.60.60.2 on eth2
    interface:

     # tc qdisc add dev eth2 ingress
     # tc filter add dev eth2 ingress protocol ip flower \
       dst_ip 60.60.60.2 action skbedit mark 0x0008 skip_sw

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Change-Id: I16856725113be0495e416dfd60fb10631e504e4e
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/114873


Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>