media: dt-bindings: media: nxp,imx7-mipi-csi2: Drop the reset-names property

The reset-names property is incorrect, as it references the reset of the
MIPI D-PHY master, which is used by the DSI controller. Fixing the
property name would create backward-compatibility issues. As the device
has a single reset, we can instead drop reset-names completely, which
also simplifies the binding.

Fix the example accordingly to use the correct reset.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml

@@ -44,9 +44,6 @@ properties:
   resets:
     maxItems: 1
 
-  reset-names:
-    const: mrst
-
   clock-frequency:
     description:
       The IP main (system bus) clock frequency in Hertz
@@ -98,7 +95,6 @@ required:
   - power-domains
   - phy-supply
   - resets
-  - reset-names
   - ports
 
 additionalProperties: false
@@ -124,7 +120,6 @@ examples:
             power-domains = <&pgc_mipi_phy>;
             phy-supply = <&reg_1p0d>;
             resets = <&src IMX7_RESET_MIPI_PHY_MRST>;
-            reset-names = "mrst";
             fsl,csis-hs-settle = <3>;
 
             ports {