DO NOT MERGE back porting for fixing sysui direct reply

Root cause: systemui run as user 0 service to handle all of users'
notifications. And, the users can user the copy/cut/paste
functionality.

Solution: To crate @hide API in TextView let SystemUI to mark the
TextView instance should check if the power of
INTERACT_ACROSS_USER_FULL is needed to be restricted.
e.x. Keyguard password textview/Notificaiton entries

Bug: 123232892
Test: manual test
Reference: I6d11e4d6a84570bc2991a8552349e8b216b0d139
Reference: Ibabe13e5b85e5bb91f9f8af6ec07c395c25c4393
Reference: I975baa748c821538e5a733bb98a33ac609bf40a7

Merged-In: Ie3daecd1e8fc2f7fdf37baeb5979da9f2e0b3937
(cherry picked from commit 08391b3d)

[basilgello: Back-ported to 14.1:
 - packages/SystemUI/src/com/android/keyguard/KeyguardPasswordView.java ->
   packages/Keyguard/src/com/android/keyguard/KeyguardPasswordView.java]

Signed-off-by: Vasyl Gello <vasek.gello@gmail.com>
Change-Id: I6d11e4d6a84570bc2991a8552349e8b216b0d139