MAINTAINERS: add video dt-bindings headers to the area

add include/zephyr/dt-bindings/video under Video area

Signed-off-by: Benjamin Cabé <[email protected]>

Author: kartben

MAINTAINERS.yml

@@ -2416,6 +2416,7 @@ Documentation Infrastructure:
     - drivers/video/
     - include/zephyr/drivers/video.h
     - include/zephyr/drivers/video-controls.h
+    - include/zephyr/dt-bindings/video/
     - doc/hardware/peripherals/video.rst
     - tests/drivers/*/video/
     - dts/bindings/video/