[acpi] add OWNERS

TEST=None
BUG=chromium-os:22007

Change-Id: I19560c843c0f42d655ed05617e22c1931d244c55
Signed-off-by: Elly Jones <ellyjones@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/19754
1 file changed