gssapi/mech: -Wcalloc-transposed args

warning: 'calloc' sizes specified with 'sizeof' in the earlier argument
and not in the later argument [-Wcalloc-transposed-args].

Swap the args.

lib/gssapi/mech/gss_accept_sec_context.c

@@ -265,7 +265,7 @@ gss_accept_sec_context(OM_uint32 *minor_status,
 	_mg_buffer_zero(output_token);
 
         if (!*context_handle) {
-                ctx = calloc(sizeof(*ctx), 1);
+                ctx = calloc(1, sizeof(*ctx));
 		if (!ctx) {
 			*minor_status = ENOMEM;
 			return (GSS_S_DEFECTIVE_TOKEN);