Disable taskbar EDU for tiny taskbar.

The tooltips are generally too large for phone mode, and since this is a
prototype, let's disable them when in tiny mode :)

Flag: com.android.wm.shell.enable_tiny_taskbar
Test: Manual
Bug: 341784466
Change-Id: I340485edf8bedc6b5d9501cb7c74b0864ae79630