Merge "Enable checkstyle everywhere in frameworks/base."

[Hook Scripts]

checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --sha ${PREUPLOAD_COMMIT}

                  -fw core/java/android/

                      graphics/java/android

                      core/tests/coretests/src/android/

                      packages/PrintRecommendationService/

                      packages/PrintSpooler/

                      services/print/

                      services/usb/

                      telephony/

api_lint_hook = ${REPO_ROOT}/frameworks/base/tools/apilint/apilint_sha.sh ${PREUPLOAD_COMMIT}