package/libs/elfutils: fix license

elfutils libraries are not licensed under GPL-3.0-or-later, they are dual
licensed: GPL-2.0-or-later OR LGPL-3.0-or-later as clearly stated in
source files as well as on https://sourceware.org/elfutils:

The libraries and backends are dual GPLv2+/LGPLv3+. The utilities are GPLv3+.

Fixes: b98fb7664639a814f3dba309eaf38b62be137bb8 (elfutils: import package from packages.git)

Signed-off-by: Fabrice Fontaine <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/19941
Signed-off-by: Hauke Mehrtens <[email protected]>
(cherry picked from commit 9a157b5d83d28043ea35501a19702beee5f8a107)

package/libs/elfutils/Makefile

@@ -16,7 +16,7 @@ PKG_SOURCE_URL:=https://sourceware.org/$(PKG_NAME)/ftp/$(PKG_VERSION) \
 PKG_HASH:=616099beae24aba11f9b63d86ca6cc8d566d968b802391334c91df54eab416b4
 
 PKG_MAINTAINER:=Luiz Angelo Daros de Luca <[email protected]>
-PKG_LICENSE:=GPL-3.0-or-later
+PKG_LICENSE:=GPL-2.0-or-later OR LGPL-3.0-or-later
 PKG_LICENSE_FILES:=COPYING COPYING-GPLV2 COPYING-LGPLV3
 PKG_CPE_ID:=cpe:/a:elfutils_project:elfutils