JobScheduler used to use procstate foreground state to decide whether
to exempt jobs, but it should use UID's active state instead, so that
if apps in the temp-whitelist schedule jobs, they run immediately.
Test: Boot
Test: atest CtsAlarmManagerTestCases
Test: atest CtsJobSchedulerTestCases
Test: atest CtsBatterySavingTestCases
Test: atest $ANDROID_BUILD_TOP/frameworks/base/services/tests/servicestests/src/com/android/server/AppStateTrackerTest.java
Change-Id: I134ac3d84a26309dab56ab6cbb271de626acdf7d