Clean and divide exclusion lists in Android.bp

There are now 3 exclusion lists:
SystemUI-tests-broken-robofiles-run: Robolectric tests that failed at runtime
SystemUI-tests-broken-robofiles-mockito-extended: Robolectric tests that failed because of ExtendedMockito references
SystemUI-tests-broken-robofiles-internal: tests with internal references
Removed dependency on mulitvalentTests for tests in the tests directory by moving shared files to the tests/utils directory.

Bug: 375261325
Flag: TEST_ONLY
Test: Tested manually with atest
Change-Id: Ia3da34c968323a873c6c4623ddc5c880d7f582fc