Add google-java-format tools to GLOBAL-PREUPLOAD.cfg.

Bug: 31552314
Test: Verified on a sample project
Change-Id: Ie15d0233e186c61c8f65fb567614aeb754995cb1

GLOBAL-PREUPLOAD.cfg

@@ -12,3 +12,5 @@ commit_msg_test_field = true
 clang-format = ${REPO_ROOT}/prebuilts/clang/host/${BUILD_OS}/clang-stable/bin/clang-format
 git-clang-format = ${REPO_ROOT}/prebuilts/clang/host/${BUILD_OS}/clang-stable/bin/git-clang-format
 gofmt = ${REPO_ROOT}/prebuilts/go/${BUILD_OS}/bin/gofmt
+google-java-format = ${REPO_ROOT}/prebuilts/tools/common/google-java-format/google-java-format
+google-java-format-diff = ${REPO_ROOT}/prebuilts/tools/common/google-java-format/google-java-format-diff.py