Please add Huawei OceanStor 5500

https://p.libren.ms/view/50e5dd28
https://p.libren.ms/view/1d2189ea
https://p.libren.ms/view/24051f4a

Please add support for Huawei OceanStor 5500
Here are mibs:
Storage.Device.MIB.File.and.Description.zip

(Imported from https://github.com/librenms/librenms/issues/8843, Original request by: @natomiast)