MAINTAINERS: Add check-qom-{interface,proplist} to QOM

Add the QOM unit tests to the QOM maintenance area so that maintainers
get CC'ed on changes and to document QOM test coverage.
Reviewed-by: NDaniel P. Berrange <berrange@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

MAINTAINERS

@@ -1164,6 +1164,8 @@ F: include/qom/
 X: include/qom/cpu.h
 F: qom/
 X: qom/cpu.c
+F: tests/check-qom-interface.c
+F: tests/check-qom-proplist.c
 F: tests/qom-test.c
 
 QMP