octeontx2-af: Set LMT_ENA bit for APR table entries

This patch enables the LMT line for a PF/VF by setting the
LMT_ENA bit in the APR_LMT_MAP_ENTRY_S structure.

Additionally, it simplifies the logic for calculating the
LMTST table index by consistently using the maximum
number of hw supported VFs (i.e., 256).

Fixes: 873a1e3d ("octeontx2-af: cn10k: Setting up lmtst map table").
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250521060834.19780-2-gakula@marvell.com


Signed-off-by: Paolo Abeni <pabeni@redhat.com>