Revert "xorg-server: remove not more needed patch after switch to package 'pkgconf'"

This reverts commit 101849fb48b47bbcfc70bcb48128b61f6ea7371b.
Revert "toolchain: switch to pkgconf"

This reverts commit f2f5c320d8619bb36ddd04980430e0521cb00e87.
connman: update to connman-1.25 disable gadget support
busybox: var-log-debug.service cosmetics
busybox: cron.service cosmetics
samba: samba-defaults.service cosmetics
xbmc: change the way tz setup is called
timezone-data: remove tzdata-setup script

now, on tz change, xbmc saves the timezone directly
into /storage/.cache/timezone in format: TIMEZONE=xx/yy

defaults to UTC if not (yet) set (first boot)
connman: remove support to create initial setting

Signed-off-by: Stephan Raue <stephan@openelec.tv>
busybox: force rebuild on config update