remoteproc: omap: Use devm action to release reserved memory

This helps prevent mistakes like freeing out of order in cleanup functions
and forgetting to free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240610151721.189472-2-afd@ti.com


Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>