Keyguard: reinflate security views after user change

Reinflate the security views after a user switch has completed so we
inflate the proper security view for the proper user.

Change-Id: I5fd865ce055ec0d157d1ff31ea76d03dfbd79e7e
Signed-off-by: Roman Birg <roman@cyngn.com>
(cherry picked from commit b53bae0e)