Fix all apps button in watch

The all apps key was not working properly on phones, which was addressd
in ag/27950198; unfortunately, this broke this functionality in watches,
as they relied on this particular intent.

Bug: 358071584
Test: Flashed on device, tested all apps and meta keys
Flag: EXEMPT bugfix
Change-Id: Ib080b2d28713d415beaaa6711a724af116e390da