On blackberry platform, virtual keyboard's setHeight() routine takes bool but should take int

In the files src/plugins/platforms/blackberry/qbbabstractvirtualkeyboard.(h|cpp) the QBBAbstractVirtualKeyboard::setHeight(bool height) routine should be taking int height instead.

With the code as it is, the height gets converted to a 1 or 0 so the availableGeometry only changes by one pixel when the keyboard is visible.

Patch is attached.