Define a system properties to config support one-handed

Add a System Property flag "ro.support_one_handed_mode" to
config support one-handed on device or not.

Bug: 154290458
Issue: FP3-A13#82
Test: manual
Change-Id: I13bd7d81cd4d2a9e8b81f33a54aea142305a37f1
(cherry picked from commit 31402deee3ace7b6f61d45b19953b269eb7f0d51)
1 file changed