Apparently hexagonrpcd cannot serve the ADSP rootpd on SDM845 devices at this time, so let's prevent the service from starting on devices with an SDSP. It can always be re-enabled at a later time. Signed-off-by: Jens Reidel <adrian@postmarketos.org> Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7090>