AOSP/Launcher3 - Update language to comply with Android's inclusive language...

AOSP/Launcher3 - Update language to comply with Android's inclusive language guidance.  DO NOT MERGE

Fixed check-style errors.

These files are AOSP specific files and they don't exist in the internal code.

See https://source.android.com/setup/contribute/respectful-code for reference

BUG=161896447

Test: m and Launcher3Tests
$ find out -name "Launcher*.apk" -print -exec ls -l {} \;
  out/target/product/bonito/testcases/Launcher3Tests/arm64/Launcher3Tests.apk
  -rw-r----- 1 rtenneti primarygroup 947525 Aug  4 16:22 out/target/product/bonito/testcases/Launcher3Tests/arm64/Launcher3Tests.apk

  out/target/product/bonito/system_ext/priv-app/Launcher3QuickStep/Launcher3QuickStep.apk
  -rw-r----- 1 rtenneti primarygroup 9249956 Aug  4 16:20 out/target/product/bonito/system_ext/priv-app/Launcher3QuickStep/Launcher3QuickStep.apk

Change-Id: I428eaa50ada96567a3b583eca1aa8ee2d8b85e6b