MFH: r505799

www/webkit2-gtk3: unbreak on aarch64, armv6, armv7

PR: 237440
Reported by: pkg-fallout
Submitted by: Greg V <greg@unrelenting.technology>
Tested by: Charlie Li <ml+freebsd@vishwin.info>
Approved by: maintainer timeout (2 months), portmgr blanket
Obtained from: upstream
Approved by: ports-secteam blanket