media: dt-bindings: vendor-prefixes: Add SK Hynix Inc.

SK Hynix built the already supported hi556 sensor (and probably much
more). For more information, see https://www.skhynix.com/

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -509,6 +509,8 @@ patternProperties:
     description: Hycon Technology Corp.
   "^hydis,.*":
     description: Hydis Technologies
+  "^hynix,.*":
+    description: SK Hynix Inc.
   "^hyundai,.*":
     description: Hyundai Technology
   "^i2se,.*":