net: add NFSv1 support

NFSv1 support added by Christian Gmeiner, Thomas Rienoessl,
September 27, 2018. As of now, NFSv3 is the default choice.
if the server does not support NFSv3, we fall back to
versions 2 or 1.

Signed-off-by: Thomas RIENOESSL <thomas.rienoessl@bachmann.info>
1 file changed