unbound: update to 1.7.2

A few bug fixes but importantly fix a deadlock on
AXFR configuration when notify occurs (auth-zone:)

Signed-off-by: Eric Luehrsen <ericluehrsen@hotmail.com>

net/unbound/Makefile

@@ -8,8 +8,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=unbound
-PKG_VERSION:=1.7.1
-PKG_RELEASE:=4
+PKG_VERSION:=1.7.2
+PKG_RELEASE:=1
 
 PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=LICENSE
@@ -17,7 +17,7 @@ PKG_MAINTAINER:=Eric Luehrsen <ericluehrsen@hotmail.com>
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.unbound.net/downloads
-PKG_HASH:=56e085ef582c5372a20207de179d0edb4e541e59f87be7d4ee1d00d12008628d
+PKG_HASH:=a85fc7bb34711992cf128b2012638ebb8dc1fe15818baa381f6489240845eaa0
 
 PKG_BUILD_PARALLEL:=1
 PKG_FIXUP:=autoreconf

net/unbound/patches/001-conf.patch

@@ -6,7 +6,7 @@ index 5396029..cbb51ec 100644
 -#
 -# Example configuration file.
 -#
--# See unbound.conf(5) man page, version 1.7.1.
+-# See unbound.conf(5) man page, version 1.7.2.
 -#
 -# this is a comment.
 +##############################################################################