Add the reg property to each channel node. This update is
to accomodate the multicolor framework. In addition to the
accomodation this allows the LEDs to be placed on any channel
and allow designs to skip channels as opposed to requiring
sequential order.
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
CC: Linus Walleij <linus.walleij@xxxxxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>