Add dpm.get/setRequiredStrongAuthTimeout to whitelist

Bug: 33165688
Test: "cts-tradefed run cts -m CtsDevicePolicyManagerTestCases -t com.android.cts.devicepolicy.ManagedProfileTest#testParentProfileApiDisabled" works
Change-Id: I67ec563224e190490f372e679a391947d99bd50f
1 file changed