building for qt-embedded is broken

This is for 1.2.0-beta1 (I cannot select that version here).

In many places "!embedded:..." is used to check for X11. This is broken.
When Qt is built for embedded then "embedded" is defined in QT_CONFIG and not in CONFIG (it's only in CONFIG when building Qt itself).
So, the correct check is "!contains(QT_CONFIG, embedded)"