2/ Resolve gesture one handed conflicts swipe up recents

When user trigger OHM, we should stop user going to both recents
and quick switch until user exit one handed mode.

The previous design is quite flickering due to below gestures
are in race condition:
1) One handed mode swipe up to exit
2) Swipe up to recents
3) Swipe horizontal to quick switch

Test: manual
Bug: 177978035
Change-Id: I10206ba9c263ead24a83a9ee0ffea2ea45eb819d