Teach hard keyboard settings about correct user ID

Settings.Secure.SHOW_IME_WITH_HARD_KEYBOARD is a per-user settings.
PhysicalKeyboardFragment needs to use the current user's ID rather than
hard-coded user ID 0.

Bug: 29406181
Change-Id: Ie40f729f3c85e9ce9ad8f957caba338786b119d9
1 file changed