octeontx2-af: Map NIX block from CGX connection

stable inclusion
from stable-v5.10.164
commit 8e2bfcfaabc30a392030089d8dee21bf2eb68f5b
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7T7G4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=8e2bfcfaabc30a392030089d8dee21bf2eb68f5b



--------------------------------

[ Upstream commit c5a73b63 ]

Firmware configures NIX block mapping for all CGXs
to achieve maximum throughput. This patch reads
the configuration and create mapping between RVU
PF and NIX blocks. And for LBK VFs assign NIX0 for
even numbered VFs and NIX1 for odd numbered VFs.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Rakesh Babu <rsaladi2@marvell.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: b4e9b876 ("octeontx2-af: Fix LMAC config in cgx_lmac_rx_tx_enable")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>