RDMA/cxgb4/csiostor: Cleansup FW related macros/register defines for PF/VF and LDST

This patch cleanups PF/VF and LDST related macros/register defines that are
defined in t4fw_api.h and the affected files.

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