doc: dt-bindings: usb251xb: mark reg as required

Mark the reg property as required and furthermore fix some typos and
spellings in the documentation.

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

[ upstream commit: fa56fe4ca4a1e4d9715f144857c98074e41bc94f ]
1 file changed
tree: d0e17422772eb469e5154356cdd8e70bfb380dd1
  1. Bindings/
  2. include/
  3. src/
  4. COPYING