octeontx2-af: npc: cn20k: Fix target map and rule

octeontx2-af: npc: cn20k: Fix target map and rule

npc_defrag_move_vdx_to_free() disables, copies, and enables the MCAM entry
at a new index but previously left entry2target_pffunc[] and the mcam_rules
list still keyed to the old index. Copy the target PF association to the
new slot, clear the old one, and retarget the rule entry so software state
matches the relocated hardware context.

Fixes: 645c6e3c1999 ("octeontx2-af: npc: cn20k: virtual index support")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Link: https://patch.msgid.link/20260429022722.1110289-5-rkannoth@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>