[split] Fix missing BUILD dependency in util-core
[split] Fix missing BUILD dependency in util-core

RB_ID=420565
TBR=true

twitter/util,LitmusHealth/twitter-utils,RUNDSP/util,LitmusHealth/twitter-utils,stremlenye/util,cogitate/twitter-util-uuid,wuqiangxjtu/util,tdyas/util,stremlenye/util,tenghuihua/util,nkhuyu/util,slackhappy/util,hydro2k/util,BuoyantIO/twitter-util,folone/util,luciferous/util,wuqiangxjtu/util,luciferous/util,Jiri-Kremser/util,edombowsky/util,BuoyantIO/twitter-util,edombowsky/util,tenghuihua/util,slackhappy/util,RUNDSP/util,RUNDSP/util,slackhappy/util,twitter/util,Jiri-Kremser/util,BuoyantIO/twitter-util,hydro2k/util,luciferous/util,Jiri-Kremser/util,BuoyantIO/twitter-util,stremlenye/util,hydro2k/util,travisbrown/util,tdyas/util,cogitate/twitter-util-uuid,tdyas/util,tdyas/util,cogitate/twitter-util-uuid,twitter/util,travisbrown/util,edombowsky/util,LitmusHealth/twitter-utils,slackhappy/util,LitmusHealth/twitter-utils,folone/util,cogitate/twitter-util-uuid,Jiri-Kremser/util,nkhuyu/util,tenghuihua/util,folone/util,nkhuyu/util,hydro2k/util,travisbrown/util,nkhuyu/util,stremlenye/util,tenghuihua/util,edombowsky/util,luciferous/util,folone/util,wuqiangxjtu/util,RUNDSP/util,wuqiangxjtu/util,travisbrown/util