usb: dwc3-generic: Add clock initialization in child DT node

Same as the reset cotnrol, should add a clock initialization in child DT
node, if the glue node doesn't have any clocks.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Marek Vasut <marex@denx.de>
1 file changed