Add self obsoletes to remove i686 multilib package when updating to F34

The i686 multilib package is gone in F34 so we need to obsolete it to
get clean upgrades.

rdma-core.spec

@@ -1,6 +1,6 @@
 Name: rdma-core
 Version: 34.0
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: RDMA core userspace libraries and daemons
 
 # Almost everything is licensed under the OFA dual GPLv2, 2 Clause BSD license
@@ -87,6 +87,11 @@ BuildRequires: make
 BuildRequires: pandoc
 %endif
 
+%if 0%{?fedora} >= 34
+# self obsoletes to remove i686 multilib package when updating to F34
+Obsoletes: rdma-core < 34.0-3
+%endif
+
 %description
 RDMA core userspace infrastructure and documentation, including initialization
 scripts, kernel driver-specific modprobe override configs, IPoIB network
@@ -653,6 +658,9 @@ fi
 %endif
 
 %changelog
+* Tue Mar 30 2021 Pete Walter <pwalter@fedoraproject.org> - 34.0-3
+- Add self obsoletes to remove i686 multilib package when updating to F34
+
 * Mon Mar 08 2021 Honggang Li <honli@redhat.com> - 34.0-2
 - RHEL9 will use prebuild doc