Add support for taskbar phone 3 button seascape

* Ignore orientation check from ag/22709055 for now,
that will be reverted. This causes recreateTaskbar() to
not run when folding the device

Bug: 274517647
Test: Tested 3 button nav in portrait/landscape/seascape
Flag: persist.wm.debug.hide_navbar_window
Change-Id: Ied02ead677d496b465c748257e32b7db5eb9580c