ice(4): Update to 1.37.7-k

ice(4): Update to 1.37.7-k

Notable changes include:

- DSCP QoS Support (leveraging support added in
  rG9c950139051298831ce19d01ea5fb33ec6ea7f89)
- Improved PFC handling and TC queue assignments (now all remaining
  queues are assigned to TC 0 when more than one TC is enabled and the
  number of available queues does not evenly divide between them)
- Support for dumping the internal FW state for additional debugging by
  Intel support
- Support for allowing "No FEC" to be a valid state for the LESM to
  negotiate when using non-standard compliant modules

Also includes various bug fixes and smaller enhancements, too.

Signed-off-by: Eric Joyner <erj@FreeBSD.org>
Reviewed by:	erj@
Tested by:	Jeff Pieper <jeffrey.pieper@intel.com>
MFC after:	3 days
Relnotes:	yes
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D38109

(cherry picked from commit 8923de59054358980102ea5acda6c6dd58273957)