Missing dependencies in `qt4`.

[dreirund]

The video feed has missing dependencies within the qt4 package:

make menuconfig:

WARNING: Makefile 'package/feeds/video/qt4/Makefile' has a dependency on 'libX11', which does not exist
WARNING: Makefile 'package/feeds/video/qt4/Makefile' has a dependency on 'libXext', which does not exist
WARNING: Makefile 'package/feeds/video/qt4/Makefile' has a dependency on 'tslib', which does not exist
WARNING: Makefile 'package/feeds/video/qt4/Makefile' has a dependency on 'directfb', which does not exist

OpenWRT branch 22.03, latest git checkout on 2022-07-09, did also appear days earlier.

Feed included in feeds.conf as

src-git   video              git://git.openwrt.org/feed/video.git

I don't find any meaningful branches or tags in this feed for 22.03, so I use master.