debian: Fix debian packaging build failures due to dot-files in tree.

openvswitch/* no longer matches all the files since commit 826bc7b
(build: Add travis continuous integration support) added files with names
beginning with ".".

VMware-BZ: #1298353
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Justin Pettit <jpettit@nicira.com>

debian/rules

@@ -103,7 +103,7 @@ install-indep: build-indep
 	dh_installdirs -p$(pdkms) usr/src/$(PACKAGE)-$(DEB_UPSTREAM_VERSION)
 
 	# copy the source
-	cd debian/$(pdkms)/usr/src/$(PACKAGE)-$(DEB_UPSTREAM_VERSION) && tar xvzf $(CURDIR)/_debian/openvswitch.tar.gz && mv openvswitch/* . && rmdir openvswitch
+	cd debian/$(pdkms)/usr/src/$(PACKAGE)-$(DEB_UPSTREAM_VERSION) && tar xvzf $(CURDIR)/_debian/openvswitch.tar.gz && mv openvswitch/* openvswitch/.* . && rmdir openvswitch
 
 	# Prepare dkms.conf from the dkms.conf.in template
 	sed "s/__VERSION__/$(DEB_UPSTREAM_VERSION)/g" debian/dkms.conf.in > debian/$(pdkms)/usr/src/$(PACKAGE)-$(DEB_UPSTREAM_VERSION)/dkms.conf