The Amazon ENA network devices are also used on the
AWS Arm (Graviton) instance types, so move it from
the x86-only module file to the top level netdevices.
Signed-off-by: Mathew McBride <matt@traverse.com.au>
(cherry picked from commit 3a7c8fd15e89237c8c9db62393d057f3a47429d2)