Fix dpkg-buildpackage build for OpenGGSN

Attached is a trivial patch to make
	"dpkg-buildpackage -rfakeroot -uc -us"
work out of the box.

Tested on ubuntu 12.04 x86_64 but should work on any debian-based
distro.

.gitignore

@@ -20,6 +20,20 @@ doc/Makefile.in
 ggsn/Makefile.in
 gtp/Makefile.in
 sgsnemu/Makefile.in
+debian/openggsn/
+debian/*.debhelper
+debian/libgtp/
+debian/*.log
+INSTALL
+debian/autoreconf.*
+debian/*.substvars
+debian/tmp/
+sgsnemu/sgsnemu
+debian/files
+debian/libgtp-dev/
+libgtp.pc
+ggsn/ggsn
+m4/
 *.swp
 *.o
 *.a

debian/rules

@@ -20,3 +20,5 @@ CFLAGS = -Wall -g
 
 %:
 	dh --with autoreconf $@
+
+override_dh_auto_clean: