cxgbe(4): First of many changes to reduce diffs with internal shared
code:

• Rename some CamelCase variables.
• s/t4_link_start/t4_link_l1cfg/g
• Pull in t4_get_port_type_description.
• Move t4_wait_op_done to t4_hw.c.
• Flip the order of the RDMA stats.
• Remove unsused function t4_iq_start_stop.
• Move t4_wait_op_done and t4_wait_op_done_val to t4_hw.c

Obtained from: Chelsio Communications