ionic: Report additional media types from firmware

ionic: Report additional media types from firmware

The device firmware supports reporting more media types than what was
there in the past, so map these new media types to existing ethtool
bits, which appears to be what other drivers do for media types that
match speeds but not physical spec.

And while here, make a very small cleanup in ionic_get_link_ksettings()
to remove some unnecessary code duplication.

Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Eric Joyner <eric.joyner@amd.com>
Link: https://patch.msgid.link/20260306215634.64550-1-eric.joyner@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>