driver core: pass a const * into of_device_uevent()

of_device_uevent() does not modify the struct device * passed into it,
so make it a const * to enforce this.  Also the documentation for the
function was really wrong so fix that up at the same time.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20221121094649.1556002-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>