ARM: dts: imx6dl-victgo: Add interrupt-counter nodes

Interrupt counter is mainlined, now we can add missing counter nodes.

Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>