tegra: Preserve sleep mask on sysjump
tegra: Preserve sleep mask on sysjump

If we sysjump while the AP is running, the AP_RUN sleep mask should be
preserved. Otherwise, the EC goes into low power idle while the AP is
still up.

BRANCH=Ryu
BUG=chrome-os-partner:34230
TEST=Without this change, bit 0 becomes 0 after a sysjump. With this, it
doesn't.

Change-Id: I55cecff3275402f7974c6078a9c203bafce2a2f9
Signed-off-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@google.com>
Reviewed-on: https://chromium-review.googlesource.com/238918
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>
Reviewed-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
Tested-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>
Commit-Queue: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>
(cherry picked from commit 9fa9307567fd03ad059723ac64bbbb796469c865)
Signed-off-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/239370

thehobn/ec,thehobn/ec,thehobn/ec,thehobn/ec