convert license to SPDX

This is part of https://fedoraproject.org/wiki/Changes/SPDX_Licenses_Phase_4

libiec61883.spec

@@ -1,8 +1,9 @@
 Summary:        Streaming library for IEEE1394
 Name:           libiec61883
 Version:        1.2.0
-Release:        35%{?dist}
-License:        LGPLv2+
+Release:        36%{?dist}
+# Automatically converted from old format: LGPLv2+ - review is highly recommended.
+License:        LicenseRef-Callaway-LGPLv2+
 Source:         http://www.kernel.org/pub/linux/libs/ieee1394/%{name}-%{version}.tar.gz
 # Fedora specific patches.
 
@@ -68,6 +69,9 @@ find %{buildroot} -name '*.la' -delete
 %{_mandir}/man1/*.1*
 
 %changelog
+* Mon Sep 02 2024 Miroslav Suchý <msuchy@redhat.com> - 1.2.0-36
+- convert license to SPDX
+
 * Thu Jul 18 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.0-35
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild