gensec: make gensec_gssapi.h common

This will make it easier to share elements of the GSSAPI gensec mechs,
in much the same way elements of the NTLMSSP mech are shared.

Andrew Bartlett

Signed-off-by: Stefan Metzmacher <metze@samba.org>

diff --git a/source4/auth/gensec/gensec_gssapi.h b/auth/gensec/gensec_gssapi.h
similarity index 100%
rename from source4/auth/gensec/gensec_gssapi.h
rename to auth/gensec/gensec_gssapi.h