dt-bindings: memory-controllers: fsl,imx8m-ddrc: drop Leonard Crestez

Emails to Leonard Crestez bounce ("550 5.4.1 Recipient address rejected:
Access denied:), so change maintainer to Peng Fan from NXP.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220817065946.24303-2-krzysztof.kozlowski@linaro.org
Link: https://lore.kernel.org/r/20220909153037.824092-1-krzysztof.kozlowski@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml

@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: i.MX8M DDR Controller
 
 maintainers:
-  - Leonard Crestez <leonard.crestez@nxp.com>
+  - Peng Fan <peng.fan@nxp.com>
 
 description:
   The DDRC block is integrated in i.MX8M for interfacing with DDR based