MAINTAINERS: Add Maira to V3D maintainers

I've been contributing to V3D with improvements, reviews, testing and
debugging. Therefore, add myself as a co-maintainer of the V3D driver.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Acked-by: Melissa Wen <mwen@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231106134201.725805-1-mcanal@igalia.com

MAINTAINERS

@@ -7105,6 +7105,7 @@ F:	drivers/gpu/drm/omapdrm/
 
 DRM DRIVERS FOR V3D
 M:	Melissa Wen <mwen@igalia.com>
+M:	Maíra Canal <mcanal@igalia.com>
 S:	Supported
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 F:	Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml