ice(4): Update to 1.34.2-k
- Adds FW logging support- Once enabled, this lets the firmware print event and error messages to the log, increasing the visibility into what the hardware is doing; this is useful for debugging
 
- General bug fixes
- Adds inital DCB support to the driver- Notably, this adds support for DCBX to the driver; now with the fw_lldp sysctl set to 1, the driver and adapter will adopt a DCBX configuration sent from a link partner
- Adds statistcs sysctls for priority flow control frames
- Adds new configuration sysctls for DCB-related features: (VLAN) user priority to TC mapping; ETS bandwidth allocation; priority flow control
 
- Remove unused SR-IOV files (until support gets added)
Signed-off-by: Eric Joyner <erj@FreeBSD.org>
Tested by:	jeffrey.e.pieper@intel.com
MFC after:	3 days
MFC with:	213e91399b, e438f0a975
Relnotes:	yes
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D34024