multimedia/go2rtc: assign PKG_CPE_ID

cpe:/a:alexxit:go2rtc is the correct CPE ID for go2rtc:
https://nvd.nist.gov/products/cpe/search/results?keyword=cpe:2.3:a:alexxit:go2rtc

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

Author: ffontaine

multimedia/go2rtc/Makefile

@@ -12,6 +12,7 @@ PKG_SOURCE_VERSION:=v$(PKG_VERSION)
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=LICENSE
 PKG_MAINTAINER:=Vladimir Ermakov <vooon341@gmail.com>
+PKG_CPE_ID:=cpe:/a:alexxit:go2rtc
 
 PKG_BUILD_DEPENDS:=golang/host
 PKG_BUILD_PARALLEL:=1