remoteproc: core: Use device_match_of_node()

Replace the open-code with device_match_of_node().

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/202211171541061366938@zte.com.cn
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>