ice_ddp: Update to 1.3.41.0

Primarily adds support for E830 devices, unlocking all of their
functionality.

As well, update the README and remove the non-FreeBSD sections
from it.

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

Sponsored by: Intel Corporation

(cherry picked from commit f9a039060e834e89e0b2de1e8a442d78bd5c083d)