mobile/cmd/gomobile: add the assets to the iOS Release build
mobile/cmd/gomobile: add the assets to the iOS Release build

Updates golang/go#11043.

Change-Id: Ied1a2a4842dc0078dc34da1266c11eec9acba114
Reviewed-on: https://go-review.googlesource.com/11263
Reviewed-by: Hyang-Ah Hana Kim <d7e82c3c07f92613bcbf9a1e88f6b96c13caa3b0@gmail.com>

qskycolor/mobile,freeman0211/mobile,tempbottle/mobile,goldcaddy77/mobile,cainiaocome/mobile,tempbottle/mobile,cainiaocome/mobile,xing/gomobile,ichu501/mobile,ichu501/mobile,zach-klippenstein/mobile,ppamorim/mobile,samanalysis/mobile,tempbottle/mobile,lonphy23t/mobile,DanielWorld/mobile,steeve/mobile,b54898533/mobile,0x90sled/mobile,swisspol/mobile,MaxCy330/mobile,zach-klippenstein/mobile,ppamorim/mobile,lonphy23t/mobile,0x90sled/mobile,swisspol/mobile,b54898533/mobile,lonphy23t/mobile,qskycolor/mobile,MaxCy330/mobile,0x90sled/mobile,ichu501/mobile,goldcaddy77/mobile,tempbottle/mobile,cainiaocome/mobile,samanalysis/mobile,goldcaddy77/mobile,golang/mobile,zach-klippenstein/mobile,samanalysis/mobile,xing/gomobile,xing/gomobile,samanalysis/mobile,ppamorim/mobile,qskycolor/mobile,MaxCy330/mobile,zach-klippenstein/mobile,DanielWorld/mobile,xing/gomobile,steeve/mobile,goldcaddy77/mobile,qskycolor/mobile,swisspol/mobile,0x90sled/mobile,golang/mobile,ppamorim/mobile,steeve/mobile,b54898533/mobile,MaxCy330/mobile,b54898533/mobile,freeman0211/mobile,cainiaocome/mobile,DanielWorld/mobile,ppamorim/mobile,0x90sled/mobile,tempbottle/mobile,ichu501/mobile,freeman0211/mobile,steeve/mobile,swisspol/mobile,golang/mobile,DanielWorld/mobile,goldcaddy77/mobile,ichu501/mobile,cainiaocome/mobile,lonphy23t/mobile,lonphy23t/mobile,samanalysis/mobile,golang/mobile,MaxCy330/mobile,xing/gomobile,b54898533/mobile,freeman0211/mobile,swisspol/mobile