i2c: imx: mention Oleksij as maintainer of the binding docs

When I removed myself as a maintainer of the yaml file, I missed that
some maintainer is required. Oleksij is already listed in MAINTAINERS
for this file, so add him here as well.

Fixes: 1ae6b378 ("i2c: imx: drop me as maintainer of binding docs")
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

Documentation/devicetree/bindings/i2c/i2c-imx.yaml

@@ -6,6 +6,9 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
 
+maintainers:
+  - Oleksij Rempel <o.rempel@pengutronix.de>
+
 allOf:
   - $ref: /schemas/i2c/i2c-controller.yaml#