Ignore fixed-orientation request on large screen device for AE

Adding a property that can be used in application AndroidManifest
that allows apps to declare if ActivityEmbedding is enabled.

Ignore the activity fixed-orientation request while running the
Activity on large screen if the ActivityEmbedding is enabled and
the activity is declared to be fixed-orientation.

Also checking a new property to know if the device supports
ActivityEmbedding.

Bug: 235797785
Test: starting portrait app in landscape mode on large screen device
Test: atest ActivityRecordTests
Change-Id: Id0d3758b1291918288d565a1dfbbb9c21bd6044d