Obsolete mariadb-config and make the main package require /etc/my.cnf

mariadb-connector-c.spec

@@ -9,6 +9,9 @@ Source3:        client.cnf
 Url:            http://mariadb.org/
 # More information: https://mariadb.com/kb/en/mariadb/building-connectorc-from-source/
 
+Requires:       %{_sysconfdir}/my.cnf
+Obsoletes:      mariadb-config <= 3:10.3.8-4
+Provides:       mariadb-config = %{version}-%{release}
 BuildRequires:  zlib-devel cmake openssl-devel gcc-c++
 # Remote-IO plugin
 BuildRequires:  libcurl-devel
@@ -179,6 +182,7 @@ end
 * Tue Jul 17 2018 Honza Horak <hhorak@redhat.com> - 3.0.5-3
 - Add -config sub-package that delivers system-wide /etc/my.cnf and
   /etc/my.cnf.d directory, that other packages should use
+  This package also obsoletes mariadb-config
 
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 3.0.5-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild