Add a working call-in number
Add a working call-in number

Signed-off-by: Doug Davis <ff3bde741799c0eff815b83a54eda3fc494df54f@us.ibm.com>

jonboulle/image-spec,xiekeyang/image-tools,opencontainers/image-spec,opencontainers/image-spec,opencontainers/image-tools,jonboulle/image-spec,vbatts/oci-image-spec,vbatts/oci-image-spec,opencontainers/image-tools,xiekeyang/image-tools,mattspencer-arm/image-spec,mattspencer-arm/image-spec