fp5280g2: Add occ sensors

Tested: booted a fp5280g2,manually binded the OCC driver when OCC activated,
        and saw core-temp,dimm-temp and power sensors via REST API.

Signed-off-by: John Wang <wangzqbj@inspur.com>
Change-Id: I109ead7075ae78fdcb186492f762b0a6e8c891a6
6 files changed