buildroot

webkitgtk: bump to version 2.16.5

This simply updates to the latest stable release. WebKitGTK+ versions
in the 2.1x series avoid bumping the dependencies in order to allow
distributions to provide updates, therefore no new dependencies are
needed.

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 23c0872442e025dd2fc6f143c1bbce6a5a7c0964)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>