ipset: update to 7.15

Update to the latest upstream version. In this version there is a new
tool with which you can convert ipsets into nftables sets. Since we are
now using nftables as default firewall, this could be a useful tool for
porting ipsets to nftables sets.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

package/network/utils/ipset/Makefile

@@ -9,12 +9,12 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=ipset
-PKG_VERSION:=7.6
+PKG_VERSION:=7.15
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=http://ipset.netfilter.org
-PKG_HASH:=0e7d44caa9c153d96a9b5f12644fbe35a632537a5a7f653792b72e53d9d5c2db
+PKG_HASH:=0a5545aaadb640142c1f888d366a78ddf8724799967fa20686a70053bd621751
 
 PKG_MAINTAINER:=Jo-Philipp Wich <jo@mein.io>
 PKG_LICENSE:=GPL-2.0
@@ -62,6 +62,7 @@ endef
 define Package/ipset/install
 	$(INSTALL_DIR) $(1)/usr/sbin
 	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/ipset $(1)/usr/sbin/
+	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/ipset-translate $(1)/usr/sbin/
 endef
 
 define Package/libipset/install

package/network/utils/ipset/patches/0001-lib-ipset-fix-printf-warning.patch

+--- a/lib/ipset.c
++++ b/lib/ipset.c
+@@ -1847,7 +1847,7 @@ static int ipset_xlate(struct ipset *ips
+ 		return -1;
+ 	case IPSET_CMD_LIST:
+ 		if (!set) {
+-			printf("list sets %s\n",
++			printf("list sets %s %s\n",
+ 			       ipset_xlate_family(family), table);
+ 		} else {
+ 			printf("list set %s %s %s\n",