dt-bindings: reset: Add YAML schemas for the Intel Reset controller

Add YAML schemas for the reset controller on Intel
Gateway SoC.

Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>