Removed old unsused devices/linux-g++-tizen-armv7l spec.

Change-Id: Iaec60f3daed289269982c8f83037b0a95934ab0e
Reviewed-by: Jarosław Staniek <staniek@kde.org>
Tizen: Screen orientation changes fixes after device tests.

Change-Id: Ib904069d302df9401b26903901408eeee0dbecfb
Reviewed-by: Jarosław Staniek <staniek@kde.org>
Setting DFLT_XKB_CONFIG_ROOT only if not defined.

Now it is possible to set DFLT_XKB_CONFIG_ROOT from
devices mkspecs.

Change-Id: Ica503625e9b8126b16aaf7f80e7ec2833ea33763
Reviewed-by: Jarosław Staniek <staniek@kde.org>