Update automake initialization.

* configure.ac: The two-argument form is deprecated.  Update
accordingly.

Signed-off-by: Justus Winter <justus@g10code.com>

configure.ac

@@ -84,7 +84,7 @@ AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_SRCDIR([src/cryptoki.h])
 AC_CONFIG_HEADER([config.h])
 AC_CONFIG_MACRO_DIR(m4)
-AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
+AM_INIT_AUTOMAKE
 AM_MAINTAINER_MODE
 AC_CANONICAL_HOST