From: Kamal Mostafa <kamal at canonical.com>
BugLink: https://bugs.launchpad.net/bugs/1850175
Update Amazon ENA driver in {X, B, D, E} -generic kernels to version 2.1.0
plus a couple follow-up fixes.
All mainline cherry picks or light backports.
Eoan actually just needs the last two of those follow-up fixes.
-Kamal