Ensure feature is supported and enabled.

Fixes: 137285390
Test: Verified that SecuritySettings no longer crashes.
Test: Verified that this PrefenceController no longer shows up
if the device does not support it.
Test: Verified that this PreferenceController no longer
shows up when the work profile is disabled.

Change-Id: I10f015e18491b203db6f942f07034d55f620cfe5