[2.38] Taking some IOS GC branches for WPE as well#1422

tomasz-karczewski-red wants to merge 3 commits intoWebPlatformForEmbedded:wpe-2.38WebPlatformForEmbedded/WPEWebKit:wpe-2.38from

LibertyGlobal:RDK-588_GC_finetuning_use_IOS_branchesLibertyGlobal/WPEWebKit:RDK-588_GC_finetuning_use_IOS_branchesCopy head branch name to clipboard