dt-bindings: timestamp: Correct id path

During the repository renaming from hte to timestamp, $id path was not
updated accordingly. This patch corrects $id path.

Fixes: af583852 ("dt-bindings: Renamed hte directory to timestamp")
Signed-off-by: Dipen Patel <dipenp@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Documentation/devicetree/bindings/timestamp/hardware-timestamps-common.yaml

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/hte/hardware-timestamps-common.yaml#
+$id: http://devicetree.org/schemas/timestamp/hardware-timestamps-common.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Hardware timestamp providers

Documentation/devicetree/bindings/timestamp/hte-consumer.yaml

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/hte/hte-consumer.yaml#
+$id: http://devicetree.org/schemas/timestamp/hte-consumer.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: HTE Consumer Device Tree Bindings

Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/hte/nvidia,tegra194-hte.yaml#
+$id: http://devicetree.org/schemas/timestamp/nvidia,tegra194-hte.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Tegra194 on chip generic hardware timestamping engine (HTE)