ixl(4): Add support for I710 devices and remove non-inclusive language

Intel introduces a new line of 1G Ethernet adapters
with Device ID 0x0DD2. While at that also remove
non-inclusive language.

Signed-off-by: Eric Joyner <erj@FreeBSD.org>

Reviewed by: kbowling@
Tested by: gowtham.kumar.ks@intel.com
MFC after: 1 week
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D34924

(cherry picked from commit b7b40e4a38d8521a40494d868d0870dfb9d6d77d)