Currently the global opt-in is only available to Game Driver. This change has
added an option to let developers to opt-in all apps to use prerelease driver.
GameDriverEnableForAllAppsPreferenceController is then refactored from
SwitchPreference to ListPreference to support this change.
Bug: 134881329
Test: make RunSettingsRoboTests ROBOTEST_FILTER=GameDriver
Change-Id: I6dcb3a22a4033a576605d42aa80b09db088d4aa2
We don't rely on FooterPreferenceMixinCompat
to create footer preference in dashboard fragment.
Instead, declare a FooterPreference explicitly in
xml of screen.
It makes more sense for our referenceController design.
Test: visual, robotest
Bug: 124129485
Change-Id: I0b0c0f9e38d85aa89b815ce2b84ddff30a1d206b
