Add ip offset definition for beige_goby and initialize it

v2: squash in fixes (Alex)
V3: fix permissions on file (Alex)
Signed-off-by: NChengming Gui <Jack.Gui@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: NTao Zhou <tao.zhou1@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>