Add support for greybus debug data format. Greybus debug data format id is 0x42. Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com> Acked-by: Laurent Pinchart <laurent.pinchart@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>