AOSP/QuickSearchBox - Update language to comply with Android's inclusive language guidance.
See https://source.android.com/setup/contribute/respectful-code for reference
BUG=161896447
Test: make and make QuickSearchBoxTests
$ ls -l out/target/product/bonito/testcases/QuickSearchBoxTests/arm64/QuickSearchBoxTests.apk
-rw-r----- 1 rtenneti primarygroup 37271 Jul 29 16:56 out/target/product/bonito/testcases/QuickSearchBoxTests/arm64/QuickSearchBoxTests.apk
$ adb install -r -d -g out/target/product/bonito/testcases/QuickSearchBoxTests/arm64/QuickSearchBoxTests.apk
Performing Streamed Install
Success
$ adb shell am instrument -w com.android.quicksearchbox.tests
...
com.android.quicksearchbox.LevenshteinFormatterTest:.........................
...
Change-Id: Ib606cba8d24a6cd3c8ac6e3cd77d25fecc96b1f4