regulator: dt-bindings: infineon,ir38060: Add Guenter as maintainer from IBM

regulator: dt-bindings: infineon,ir38060: Add Guenter as maintainer from IBM

The infineon,ir38060 binding never got maintainer and fake "Not Me"
entry have been causing dt_binding_check warnings for 1.5 years now:

  regulator/infineon,ir38060.yaml: maintainers:0: 'Not Me.' does not match '@'

Guenter agreed to keep an eye for this hardware and binding.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Conor Dooley <conor.dooley@microchip.com>
Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Cc: Ninad Palsule <ninad@linux.ibm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20250811141526.168752-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>