net/bnxt: process action templates

net/bnxt: process action templates

Extend index table processing to process action templates.
The index table processing is extended to address encapsulation fields
so that action template index table can be processed by a common index
processing function that can process both class and action index
tables.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>