dt-bindings: display: bridge: drop Enric Balletbo i Serra from maintainers

Enric Balletbo i Serra emails bounce:

<[e-mail]>: Recipient address rejected: User unknown in local recipient table

so drop him from the maintainers, similarly to commit 3119c28634dd
("MAINTAINERS: Chrome: Drop Enric Balletbo i Serra"). Add generic DRM
bridge maintainers to Analogix ANX7814.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Neil Armstrong <[e-mail]>
Acked-by: Enric Balletbo i Serra <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml

···
 title: Analogix ANX7814 SlimPort (Full-HD Transmitter)
 
 maintainers:
-  - Enric Balletbo i Serra <[e-mail]>
+  - Andrzej Hajda <[e-mail]>
+  - Neil Armstrong <[e-mail]>
+  - Robert Foss <[e-mail]>
 
 properties:
   compatible:

Documentation/devicetree/bindings/display/bridge/google,cros-ec-anx7688.yaml

···
 
 maintainers:
   - Nicolas Boichat <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
 
 description: |
   ChromeOS EC ANX7688 is a display bridge that converts HDMI 2.0 to

Documentation/devicetree/bindings/display/bridge/ps8640.yaml

···
 
 maintainers:
   - Nicolas Boichat <[e-mail]>
-  - Enric Balletbo i Serra <[e-mail]>
 
 description: |
   The PS8640 is a low power MIPI-to-eDP video format converter supporting