Revert "arc: Replace the IsSwapped criterion by swapping signal"

This reverts commit ba3c7886eeaee296e27a4dfaa7841c512edc105b.

Reason for revert: Decide to keep original way in M117

Original change's description:
> arc: Replace the IsSwapped criterion by swapping signal
>
> This CL update the swap criterion in arc vmm manager to concierge
> signal.
>
> BUG=b:285502224
> TEST=ArcVmmManagerTest
>
> Change-Id: Ic23505c2adbfe8307c6928f5e43baf002d29811c
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4672505
> Commit-Queue: Shengsong Tan <sstan@chromium.org>
> Reviewed-by: Yuichiro Hanada <yhanada@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1167897}

BUG=b:285502224

Change-Id: I3ea1190c971e9d83204f07fcdbba91df4b1b48f3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4719525
Reviewed-by: Yuichiro Hanada <yhanada@chromium.org>
Commit-Queue: Shengsong Tan <sstan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1175200}