libupnp: bump to version 1.6.22

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libupnp/libupnp.hash

@@ -1,2 +1,2 @@
 # Locally computed:
-sha256	af3f3c0846a1d75baeadae4aa5a2bda427567e2a1fb4559bf73ccff0a4f9a39b	libupnp-1.6.21.tar.bz2
+sha256	0bdfacb7fa8d99b78343b550800ff193264f92c66ef67852f87f042fd1a1ebbc	libupnp-1.6.22.tar.bz2

package/libupnp/libupnp.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBUPNP_VERSION = 1.6.21
+LIBUPNP_VERSION = 1.6.22
 LIBUPNP_SOURCE = libupnp-$(LIBUPNP_VERSION).tar.bz2
 LIBUPNP_SITE = http://downloads.sourceforge.net/project/pupnp/pupnp/libUPnP%20$(LIBUPNP_VERSION)
 LIBUPNP_CONF_ENV = ac_cv_lib_compat_ftime=no