dt-bindings: memory: fsl: replace maintainer

Li Yang's mail address is bouncing, replace it with Shawn Guo's one.
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20240604142249.1957762-2-mwalle@kernel.orgSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ifc.yaml

@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: FSL/NXP Integrated Flash Controller
 
 maintainers:
-  - Li Yang <leoyang.li@nxp.com>
+  - Shawn Guo <shawnguo@kernel.org>
 
 description: |
   NXP's integrated flash controller (IFC) is an advanced version of the