Fix import order to finally match checkstyle

This also matches all of our IDEA import order configs, making the
checkstyle advice of "Use Optimize Imports" actually work :-)

[automated cleanup]

    $ find . -name "*.java" | xargs google-java-format --aosp --fix-imports-only --replace

After this CL only two files remain with checkstyle import errors
due to 'platform.*' imports which have no explicit ordering defined
in checkstyle:

    packages/SystemUI/multivalentTests/src/com/android/systemui/statusbar/NotificationLockscreenUserManagerTest.java
    packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/footer/ui/view/FooterViewTest.java

Bug: 333533940
Test: None
Flag: None
Change-Id: I9767e37566c5a733033196c5858388835a564a72