MAINTAINERS: Add the cdrom-test to John's section

The cdrom-test checks various block types - IDE, SCSI and
virtio, so it's a little bit hard to decide where this should
belong to in the MAINTAINERS file. But John volunteered to take
it, so let's put it into the IDE section for now.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Acked-by: NJohn Snow <jsnow@redhat.com>
Signed-off-by: NJohn Snow <jsnow@redhat.com>

MAINTAINERS

@@ -1003,6 +1003,7 @@ F: hw/block/cdrom.c
 F: hw/block/hd-geometry.c
 F: tests/ide-test.c
 F: tests/ahci-test.c
+F: tests/cdrom-test.c
 F: tests/libqos/ahci*
 T: git git://github.com/jnsnow/qemu.git ide