dt-bindings: interrupt-controller: microchip,sama7g5-eic: use proper naming syntax

Use the following syntax for Microchip EIC YAML file: vendor,device.yaml.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230523070637.224476-2-claudiu.beznea@microchip.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/interrupt-controller/microchip,eic.yaml → Documentation/devicetree/bindings/interrupt-controller/microchip,sama7g5-eic.yaml

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/interrupt-controller/microchip,eic.yaml#
+$id: http://devicetree.org/schemas/interrupt-controller/microchip,sama7g5-eic.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Microchip External Interrupt Controller