linux-phytec-ti

bnxt_en: Modify bnxt_get_max_rings() to support shared or non shared rings.

Add logic to calculate how many shared or non shared rings can be
supported.  Default is to use shared rings.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>