Update Odyssey register headers.

Change-Id: I1951a1c5aab5b0481b2797cca8d89bb34c5a47c3
Original-Change-Id: Iecc605e6136c3f50db52481c8a58eb8ea393a4d9
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/133804
Tested-by: Jenkins Server <[email protected]>
Tested-by: FSP CI Jenkins <[email protected]>
Tested-by: HWSV CI <[email protected]>
Tested-by: Hostboot CI <[email protected]>
Reviewed-by: Louis Stermole <[email protected]>
Reviewed-by: STEPHEN GLANCY <[email protected]>
Reviewed-by: Joseph J McGill <[email protected]>

Author: BenAtIBM