u2pnpd: update to 0.4

While at, switch to xz-tarball.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

net/u2pnpd/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=u2pnpd
-PKG_VERSION:=0.3
+PKG_VERSION:=0.4
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://github.com/mhei/u2pnpd/releases/download/v$(PKG_VERSION)
-PKG_HASH:=73010be7ec523e3c3a9849a9783026627ecb3bc18d8195a9bed450e98a055ac2
+PKG_HASH:=4f1c98655fd75ca5d760155490f5331656f39f96bc7ea5a7bf75311848df7e2a
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=COPYING