Fix for wheezy build of mod_auth_gssapi

diff --git a/mod_auth_gssapi b/mod_auth_gssapi
index 7a30f22..04f0c3a 160000 (submodule)
--- a/mod_auth_gssapi
+++ b/mod_auth_gssapi
@@ -1 +1 @@
-Subproject commit 7a30f2297a74b40359aebf9951ba00270c4c1b10
+Subproject commit 04f0c3aa202fcc6d730194ec1ab5587959859457