Use modern pkg-config name

OBS-URL: https://build.opensuse.org/package/show/network:samba:STABLE/cifs-utils?expand=0&rev=150

cifs-utils.spec

@@ -20,7 +20,7 @@ Name:           cifs-utils
 Version:        6.7
 Release:        0
 Summary:        Utilities for doing and managing mounts of the Linux CIFS filesystem
-License:        GPL-3.0+
+License:        GPL-3.0-or-later
 Group:          System/Filesystems
 Url:            http://www.samba.org/linux-cifs/cifs-utils/
 Source:         https://ftp.samba.org/pub/linux-cifs/%{name}/%{name}-%{version}.tar.bz2
@@ -76,7 +76,7 @@ BuildRequires:  libkeyutils-devel
 BuildRequires:  libwbclient-devel
 %endif
 BuildRequires:  pam-devel
-BuildRequires:  pkgconfig
+BuildRequires:  pkg-config
 Requires:       keyutils
 %if ! %{defined _rundir}
 %define _rundir %{_localstatedir}/run