libdvdcss-1.2.12 removed _XBOX unneeded patches
libdvdcss-1.2.12 updated diff files
libdvdcss update to 1.2.13 - incl diff file
libdvdread-libdvdnav update to 4.2.1
libdvdread-libdvdnav - remove unused xbmc patches
libdvdread-libdvdnav - updated diff files
[gui] save and restore the current focused control in LoadSkin rather than ReloadSkin
[gui] move fallbacks to default skin up to the ReloadSkin functions. Fixes #15131
[cosmetic] remove unused m_skinReloading variable
Merge pull request #4107 from Voyager1/libdvd-update

Libdvdread and Libdvdnav update to latest version 4.2.1 - Libdvdcss to 1.2.13
Merge pull request #4603 from jmarshallnz/skin_load_cleanup

Skin load cleanup
[depends] move ffmpeg to unified deps
[configure] remove internal ffmpeg
remove ffmpeg from tree
ffmpeg: remove dll wrappers
add ffmpeg lock manager
todo: refactor to own file
ffmpeg: move callbacks into separate file
remove ffmpeg dlls from generated headers
not removing win32 as this might still be needed?
[rpi] setup-sdk.sh: allow overriding of buildroot and xbmc install paths
also don't require root if not needed
add ffmpeg makefile for rpi