[SSSD] [PATCH] Set canonicalize flag if enterprise principals are used

[Sumit Bose]

Hi,

after some discussion with Greg Hudson I realized that AD does not
canonicalize enterprise principals by default, as a MIT KDC does, but
explicitly needs the canonicalize flag to be set. With this fix the ugly
user\@SOME.REALM(a)OTHER.REALM principals in the credential cache should
go away.

bye,
Sumit