net/bnxt: fix RSS action

net/bnxt: fix RSS action

Specifying a subset of Rx queues created by the application in
the "flow create" command is invalid.
User must either specify all Rx queues created or no queues.

Also removed a wrong comment as RSS action will not be supported
if user or application specifies MARK or COUNT action.

Fixes: 239695f754cb ("net/bnxt: enhance RSS action support")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>