Show multiple App Info A11y options for split app icons

* AccessibilityNode actions are required to have a
unique resourceId to show as an action in A11y dialog.
For now, only AppInfo option is shown for each app in split,
but moving forward we'll need to add resourceIDs for
each option that can show up for either app.

Fixes: 200609838
Test: Saw multiple options for App Info for each app
come up in talkback mode

Change-Id: I92b349347354ac639537021d775eea814c866a0e