Use userId instead of USER_CURRENT in shouldLockKeyguard.

USER_CURRENT is not an acceptable input to isSecure(). The test has also
been updated as the use of any() for the mock hid this bug.

Test: atest LockTaskControllerTest
Bug: 176801033

Change-Id: I74f1332f059e26ccedf49d778d683526a6ebec8d
(cherry picked from commit bb7a9a7d)