Moved dbus autotests into new directory structure

Task-number: QTBUG-21108

Change-Id: I8cdd4af59db3716921e7392379584f349ed29136
Reviewed-on: http://codereview.qt.nokia.com/3602
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

tests/auto/auto.pro

@@ -10,5 +10,5 @@ SUBDIRS += \
 
 !cross_compile:                             SUBDIRS += host.pro
 contains(QT_CONFIG, opengl):                SUBDIRS += opengl.pro
-unix:!embedded:contains(QT_CONFIG, dbus):   SUBDIRS += dbus.pro
+unix:!embedded:contains(QT_CONFIG, dbus):   SUBDIRS += dbus
 contains(QT_CONFIG, v8):                    SUBDIRS += v8.pro