The CL in [1] moved android.os.RecoverySystem to send the locale
argument in well-formed BCP 47 language tags (e.g. "en-US" instead of
"en_US"), with the matching changes to recovery code in [2]. However,
the one in ScreenRecoveryUI::SetLocale() was missed, which broke RTL
locale detection when using new format.
[1] commit 38715228 in platform/frameworks/base
[2] commit 2078b22e in platform/bootable/recovery
Test: Set the locale to "ar-EG". `Run graphics test` under recovery.
Check the progress bar.
Test: Run recovery_unit_test on marlin.
Change-Id: I7c7f5e0725bfb096109c7192c19f3f008e8e47e3
347a659d9b