Checkmk Werk 15280: synology_disk: use diskRole to ignore "not initialized" warning

ID: 15280 Title: synology_disk: use diskRole to ignore "not initialized" warning Component: Checks & agents Level: 1 Class: Bug fix Version: 2.3.0b1 It's okay if a disk is not initialized (this is normally a warning) if the disk is not used at all, a SSD-cache or a hot-spare. Before all disks containing SSD or NVME in the disk model were assumed to be caches.