cxgb4vf: added much cleaner implementation of is_t4()

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
Simple merge

diff --cc drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
Simple merge

diff --cc drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
Simple merge

diff --cc drivers/net/ethernet/chelsio/cxgb4vf/sge.c
Simple merge

diff --cc drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h
Simple merge

diff --cc drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
Simple merge