dt-bindings: vendor-prefixes: Add an entry for GE HealthCare

Add the "gehc" entry for GE HealthCare.
https://www.gehealthcare.com



Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Ian Ray <ian.ray@gehealthcare.com>
Link: https://patch.msgid.link/20241003114641.672086-2-herve.codina@bootlin.com


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>