MAINTAINERS: update fsl,dpaa2-console.yaml reference

Changeset 616fde2d ("dt-bindings: misc: convert fsl,dpaa2-console from txt to YAML")
renamed: Documentation/devicetree/bindings/misc/fsl,dpaa2-console.txt
to: Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml.

Update its cross-reference accordingly.

Fixes: 616fde2d ("dt-bindings: misc: convert fsl,dpaa2-console from txt to YAML")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

MAINTAINERS

@@ -7196,7 +7196,7 @@ M:	Li Yang <leoyang.li@nxp.com>
 L:	linuxppc-dev@lists.ozlabs.org
 L:	linux-arm-kernel@lists.infradead.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/misc/fsl,dpaa2-console.txt
+F:	Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
 F:	Documentation/devicetree/bindings/soc/fsl/
 F:	drivers/soc/fsl/
 F:	include/linux/fsl/