octeontx2-af: npc: cn20k: Prepare for new SoC

octeontx2-af: npc: cn20k: Prepare for new SoC

Current code pass mcam_entry structure to all low
level functions. This is not proper:

1) We need to modify all functions to support a new SoC
2) It does not look good to pass soc specific structure to
all common functions.

This patch adds a mcam meta data structure, which is populated
and passed to low level functions.

Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260224080009.4147301-8-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>