s390x: Rework TEID decoding and usage

The translation-exception identification (TEID) contains information to
identify the cause of certain program exceptions, including translation
exceptions occurring during dynamic address translation, as well as
protection exceptions.
The meaning of fields in the TEID is complex, depending on the exception
occurring and various potentially installed facilities.

Rework the type describing the TEID, in order to ease decoding.
Change the existing code interpreting the TEID and extend it to take the
installed suppression-on-protection facility into account.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Message-Id: <20220621143015.748290-4-scgl@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>