package/network/utils/iptables: fix PKG_CPE_ID

cpe:/a:netfilter:iptables is the correct CPE ID for iptables:
https://nvd.nist.gov/products/cpe/search/results?keyword=cpe:2.3:a:netfilter:iptables

Fixes: c61a239 (add PKG_CPE_ID ids to package and tools)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Link: openwrt#15297
Signed-off-by: Robert Marko <robimarko@gmail.com>

package/network/utils/iptables/Makefile

@@ -23,7 +23,7 @@ PKG_INSTALL:=1
 PKG_BUILD_FLAGS:=gc-sections no-lto
 PKG_BUILD_PARALLEL:=1
 PKG_LICENSE:=GPL-2.0
-PKG_CPE_ID:=cpe:/a:netfilter_core_team:iptables
+PKG_CPE_ID:=cpe:/a:netfilter:iptables
 
 include $(INCLUDE_DIR)/package.mk
 ifeq ($(DUMP),)