dt-bindings: Add bindings for peci-aspeed

Add device tree bindings for the peci-aspeed controller driver.

Co-developed-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20220208153639.255278-3-iwona.winiarska@intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>