compiler doing argument type checking. Since the prototypes in
kgss_if.h used the generic gss_ctx_id_t for the context argument,
but the functions in sys/kgssapi/krb5/krb5_mech.c used the
KerberosV specific context argument, the file would no longer build.
This patch fixes it so it will build by replacing the argument with
a gss_ctx_id_t one and setting a local "struct krb5_context *" variable
to it for use by the function.
Reviewed by: dfr
Approved by: kib (mentor)
f0557704cf