dt-bindings: usb: xilinx: Replace Manish by Piyush

Manish no longer works for AMD/Xilinx and there is also no activity from
him. That's why proposing Piyush as the best candidate instead.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/504444f5c2f4e725ac39cba1d72032d5a00c7cda.1684828805.git.michal.simek@amd.com

Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml

@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Xilinx SuperSpeed DWC3 USB SoC controller
 
 maintainers:
-  - Manish Narani <manish.narani@xilinx.com>
+  - Piyush Mehta <piyush.mehta@amd.com>
 
 properties:
   compatible:

Documentation/devicetree/bindings/usb/xlnx,usb2.yaml

@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Xilinx udc controller
 
 maintainers:
-  - Manish Narani <manish.narani@xilinx.com>
+  - Piyush Mehta <piyush.mehta@amd.com>
 
 properties:
   compatible: