MAINTAINERS: of: collapse overlay entry into main device tree entry

Pantelis has not been active in recent years so no need to maintain
a separate entry for device tree overlays.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20221012220548.4163865-1-frowand.list@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>

MAINTAINERS

@@ -15359,17 +15359,6 @@ L:	linux-rdma@vger.kernel.org
 S:	Supported
 F:	drivers/infiniband/ulp/opa_vnic
 
-OPEN FIRMWARE AND DEVICE TREE OVERLAYS
-M:	Pantelis Antoniou <pantelis.antoniou@konsulko.com>
-M:	Frank Rowand <frowand.list@gmail.com>
-L:	devicetree@vger.kernel.org
-S:	Maintained
-F:	Documentation/devicetree/dynamic-resolution-notes.rst
-F:	Documentation/devicetree/overlay-notes.rst
-F:	drivers/of/overlay.c
-F:	drivers/of/resolver.c
-K:	of_overlay_notifier_
-
 OPEN FIRMWARE AND FLATTENED DEVICE TREE
 M:	Rob Herring <robh+dt@kernel.org>
 M:	Frank Rowand <frowand.list@gmail.com>
@@ -15382,6 +15371,9 @@ F:	Documentation/ABI/testing/sysfs-firmware-ofw
 F:	drivers/of/
 F:	include/linux/of*.h
 F:	scripts/dtc/
+K:	of_overlay_notifier_
+K:	of_overlay_fdt_apply
+K:	of_overlay_remove
 
 OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
 M:	Rob Herring <robh+dt@kernel.org>