DPM: Allow Device Admin targeting P to set quality

If the caller is a Device Admin and it's targeting API level 28,
let it call setPasswordQuality.

Bug: 174672085
Test: atest CtsDevicePolicyManagerTestCases:com.android.cts.devicepolicy.DeviceAdminHostSideTestApi24#testRunDeviceAdminTest
Change-Id: Ib5b8db0079f1989918e5460495cdd5a69fb106d8
1 file changed