cxgb4: Add support for QSA modules

Firmware 1.12.25.0 added support for QSA module, adding the driver code for it.
Also fixes some ethtool get settings for other module types.

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