dt-bindings: Drop Jee Heng Sia

Emails to Jee Heng Sia bounce ("550 #5.1.0 Address rejected.").  Add
Keembay platform maintainers as Keembay I2S maintainers.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221205164254.36418-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

@@ -8,7 +8,6 @@ title: Synopsys DesignWare AXI DMA Controller
 
 maintainers:
   - Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
-  - Jee Heng Sia <jee.heng.sia@intel.com>
 
 description:
   Synopsys DesignWare AXI DMA Controller DT Binding

Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml

@@ -8,7 +8,8 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Intel KeemBay I2S
 
 maintainers:
-  - Sia, Jee Heng <jee.heng.sia@intel.com>
+  - Daniele Alessandrelli <daniele.alessandrelli@intel.com>
+  - Paul J. Murphy <paul.j.murphy@intel.com>
 
 description: |
  Intel KeemBay I2S