dt-bindings: irqchip: mrvl,intc: refresh maintainers

Jason's email bounces and his address was dropped from maintainers in
commit 509920a ("MAINTAINERS: Move Jason Cooper to CREDITS"), so
drop him here too.  Switch other maintainers from IRQCHIP subsystem
maintainers to Marvell Orion platform maintainers because its a bigger
chance they know the hardware.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220317142952.479413-1-krzysztof.kozlowski@canonical.com

Author: krzk

Documentation/devicetree/bindings/interrupt-controller/mrvl,intc.yaml

@@ -7,10 +7,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Marvell MMP/Orion Interrupt controller bindings
 
 maintainers:
-  - Thomas Gleixner <tglx@linutronix.de>
-  - Jason Cooper <jason@lakedaemon.net>
-  - Marc Zyngier <maz@kernel.org>
-  - Rob Herring <robh+dt@kernel.org>
+  - Andrew Lunn <andrew@lunn.ch>
+  - Gregory Clement <gregory.clement@bootlin.com>
 
 allOf:
   - if: