Additional unit tests for isProvisioningAllowed

Test it with disallow add / remove managed profile user restrictions.

BUG:32629873
Test: adb shell am instrument -e class
com.android.server.devicepolicy.DevicePolicyManagerTest -w com.android.frameworks.servicestests/android.support.test.runner.AndroidJUnitRunner

Change-Id: Ic6b01c2b0ed9081204801a6c5719b0fd25eafbba
1 file changed