qt53d, qt5serialbus: move to technology preview section

As explained in
https://wiki.qt.io/New_Features_in_Qt_5.6#Technology_Preview_Modules,
not only qt5quickcontrols2 is a technology preview component in Qt 5.6,
but also qt53d, qt5serialbus.

Signed-off-by: Matt Kraai <kraai@ftbfs.org>
[Thomas: improve commit log with a reference.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/qt5/Config.in

@@ -31,7 +31,6 @@ menuconfig BR2_PACKAGE_QT5
 
 if BR2_PACKAGE_QT5
 source "package/qt5/qt5base/Config.in"
-source "package/qt5/qt53d/Config.in"
 source "package/qt5/qt5canvas3d/Config.in"
 source "package/qt5/qt5connectivity/Config.in"
 source "package/qt5/qt5declarative/Config.in"
@@ -42,7 +41,6 @@ source "package/qt5/qt5location/Config.in"
 source "package/qt5/qt5multimedia/Config.in"
 source "package/qt5/qt5quickcontrols/Config.in"
 source "package/qt5/qt5sensors/Config.in"
-source "package/qt5/qt5serialbus/Config.in"
 source "package/qt5/qt5serialport/Config.in"
 source "package/qt5/qt5svg/Config.in"
 source "package/qt5/qt5tools/Config.in"
@@ -51,7 +49,9 @@ source "package/qt5/qt5websockets/Config.in"
 source "package/qt5/qt5x11extras/Config.in"
 source "package/qt5/qt5xmlpatterns/Config.in"
 comment "technology preview"
+source "package/qt5/qt53d/Config.in"
 source "package/qt5/qt5quickcontrols2/Config.in"
+source "package/qt5/qt5serialbus/Config.in"
 comment "legacy compatibility"
 source "package/qt5/qt5script/Config.in"
 source "package/qt5/qt5webkit/Config.in"