dt-bindings: gpu: img,powervr-*: Add maintainer entries

These entries were previously unaligned with MAINTAINERS, but will be
even more so now that entries are being changed there. Bring them in
sync by replacing the list here with the updated one from MAINTAINERS.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Alessio Belle <alessio.belle@imgtec.com>
Acked-by: Luigi Santivetti <luigi.santivetti@imgtec.com>
Link: https://patch.msgid.link/20260626-maintainer-updates-v2-3-e1b3f246c44c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>

Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml

@@ -8,7 +8,9 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Imagination Technologies PowerVR and IMG Rogue GPUs
 
 maintainers:
-  - Frank Binns <frank.binns@imgtec.com>
+  - Matt Coster <matt.coster@imgtec.com>
+  - Alessio Belle <alessio.belle@imgtec.com>
+  - Luigi Santivetti <luigi.santivetti@imgtec.com>
 
 properties:
   compatible:

Documentation/devicetree/bindings/gpu/img,powervr-sgx.yaml

@@ -9,7 +9,9 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Imagination Technologies PowerVR SGX GPUs
 
 maintainers:
-  - Frank Binns <frank.binns@imgtec.com>
+  - Matt Coster <matt.coster@imgtec.com>
+  - Alessio Belle <alessio.belle@imgtec.com>
+  - Luigi Santivetti <luigi.santivetti@imgtec.com>
 
 properties:
   compatible: