mosys: Add more system calls for firmwareupdate.

Several machines (elm, hana, scarlet, eve, ...) were failing
on chromeos-firmware update. With these system calls,
the command succeeds on hana.

BUG=chromium:872394
TEST=built and ran on hana

Change-Id: Iab8c82a6c2f1fab0032b398db2f328815ab0c786
Reviewed-on: https://chromium-review.googlesource.com/1178966
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Tested-by: Samantha Miller <samanthamiller@google.com>
Tested-by: Raul E Rangel <rrangel@chromium.org>
Commit-Queue: Justin TerAvest <teravest@chromium.org>
(cherry picked from commit 1842e66725eef3596a7dc16da71392e54981b7b9)
Reviewed-on: https://chromium-review.googlesource.com/1183762
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Samantha Miller <samanthamiller@google.com>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Trybot-Ready: Aseda Aboagye <aaboagye@chromium.org>
(cherry picked from commit 98710b8f724fa9e504e4133abd384f8da9cc7535)
Reviewed-on: https://chromium-review.googlesource.com/1198389
Reviewed-by: Bob Moragues <moragues@chromium.org>
Commit-Queue: Bob Moragues <moragues@chromium.org>
Tested-by: Bob Moragues <moragues@chromium.org>
2 files changed