spec: Fix printing test-suite.log when make check fails

Commit v5.7.0-248-g03449e25 removed "cd tests" without updating the
patch to test-suite.log.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
Reviewed-by: NPavel Hrdina <phrdina@redhat.com>

libvirt.spec.in

@@ -1307,7 +1307,7 @@ mv $RPM_BUILD_ROOT%{_datadir}/systemtap/tapset/libvirt_qemu_probes.stp \
 cd %{_vpath_builddir}
 if ! make %{?_smp_mflags} check VIR_TEST_DEBUG=1
 then
-  cat test-suite.log || true
+  cat tests/test-suite.log || true
   exit 1
 fi