Arm backend: Fix stale docgen generation

Update the Ethos-U docgen template to point to the correct
tutorial path. This keeps pre-push from regenerating docs with
the stale tutorial URL.

Signed-off-by: Christoffer J.L <christoffer.johanssonlundqvist@arm.com>
Change-Id: I102d9b3b14b6e81a691146731645801a54d2ac69

Author: Christoffer-JL

backends/arm/scripts/docgen/ethos-u/backends-arm-ethos-u-overview.md.in

@@ -4,7 +4,7 @@ The Arm® Ethos™-U backend targets Edge/IoT-type AI use-cases by enabli
 [Arm® Ethos™-U55 NPU](https://www.arm.com/products/silicon-ip-cpu/ethos/ethos-u55), [Arm® Ethos™-U65 NPU](https://www.arm.com/products/silicon-ip-cpu/ethos/ethos-u65), and
 [Arm® Ethos™-U85 NPU](https://www.arm.com/products/silicon-ip-cpu/ethos/ethos-u85), leveraging [TOSA](https://www.mlplatform.org/tosa/) and the
 [ethos-u-vela](https://pypi.org/project/ethos-u-vela/) graph compiler. This document is a technical reference for using the Ethos-U backend, for a top level view with code examples
-please refer to the [Arm Ethos-U Backend Tutorial](https://docs.pytorch.org/executorch/stable/tutorial-arm-ethos-u.html).
+please refer to the [Arm Ethos-U Backend Tutorial](tutorials/ethos-u-getting-started.md).
 
 ## Features
 
@@ -55,7 +55,7 @@ For more information on quantization, see [Quantization](arm-ethos-u-quantizatio
 
 ## Runtime Integration
 
-An example runtime application is available in [examples/arm/executor_runner](https://github.com/pytorch/executorch/blob/main/examples/arm/executor_runner/), and the steps requried for building and deploying it on a FVP it is explained in the previously mentioned [Arm Ethos-U Backend Tutorial](https://docs.pytorch.org/executorch/stable/tutorial-arm-ethos-u.html).
+An example runtime application is available in [examples/arm/executor_runner](https://github.com/pytorch/executorch/blob/main/examples/arm/executor_runner/), and the steps requried for building and deploying it on a FVP it is explained in the previously mentioned [Arm Ethos-U Backend Tutorial](tutorials/ethos-u-getting-started.md).
 The example application is recommended to use for testing basic functionality of your lowered models, as well as a starting point for developing runtime integrations for your own targets.
 For an in-depth explanation of the architecture of the executor_runner and the steps required for doing such an integration, please refer to [Ethos-U porting guide](https://github.com/pytorch/executorch/blob/main/examples/arm/ethos-u-porting-guide.md).