soc: octeontx2-sdp: add multi-PF support in SDP

commit 01b4ef0f32229db6c3a3375955968d530d016666 from
git@git.assembla.com:cavium/WindRiver.linux.git

Added multi-PF support in SDP. This enables host side to assign the PFs
to different VMs.

Signed-off-by: Radha Mohan Chintakuntla <radhac@marvell.com>
Change-Id: I8bad3be64ff1891cdaad2657f3d6db41371cc139
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/85691


Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Satananda Burla <sburla@marvell.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>