MFC r314365
- state checks in bxe_tx_mq_start_locked() and bxe_tx_mq_start() to sync threads during interface down or detach.
- add sysctl to set pause frame parameters
- increase max segs for TSO packets to BXE_TSO_MAX_SEGMENTS (32)
- add debug messages for PHY
- HW LRO support restricted to FreeBSD versions 8.x and above.
Submitted by: Vaishali.Kulkarni@cavium.com