ibrdtn-tools: Add autoreconf to fixup

The fixup is necessary since there is a patch for configure.ac in this recipe.

Signed-off-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>

net/ibrdtn-tools/Makefile

@@ -18,6 +18,7 @@ PKG_MAINTAINER:=Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 PKG_LICENSE:=Apache-2.0
 
 PKG_INSTALL:=1
+PKG_FIXUP:=autoreconf
 
 include $(INCLUDE_DIR)/package.mk