dt-bindings: gpu: Rename img,powervr to img,powervr-rogue

This binding will be used for GPUs starting from Series6 (Rogue)
and later. A different binding document will describe Series5.
With that the name "img,powervr" is too generic, rename to
"img,powervr-rogue" to avoid confusion.

Suggested-by: Maxime Ripard <[e-mail]>
Signed-off-by: Andrew Davis <[e-mail]>
Reviewed-by: Javier Martinez Canillas <[e-mail]>
Reviewed-by: Frank Binns <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Message-ID: <[e-mail]>
Signed-off-by: Tony Lindgren <[e-mail]>

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

···
 # Copyright (c) 2023 Imagination Technologies Ltd.
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/gpu/img,powervr.yaml#
+$id: http://devicetree.org/schemas/gpu/img,powervr-rogue.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Imagination Technologies PowerVR and IMG GPU
+title: Imagination Technologies PowerVR and IMG Rogue GPUs
 
 maintainers:
   - Frank Binns <[e-mail]>

MAINTAINERS

···
 M:	Matt Coster <[e-mail]>
 S:	Supported
 T:	git git://anongit.freedesktop.org/drm/drm-misc
-F:	Documentation/devicetree/bindings/gpu/img,powervr.yaml
+F:	Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
 F:	Documentation/gpu/imagination/
 F:	drivers/gpu/drm/imagination/
 F:	include/uapi/drm/pvr_drm.h