Minimal changes needed to include executorch as a module for zephyr

[BujSet]

The official executorch repo has included changes to allow executorch to be built as a module for zephyr, see this PR. The minimal changes in this PR allow projects to build executorch and link zephyr applications to the executorch library. The changes in this PR are based off the work started here.

[github-actions]

Hello @BujSet, and thank you very much for your first pull request to the Zephyr project!
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[JarmouniA]

"All modules included in the default manifest shall be hosted in repositories under the zephyrproject-rtos GitHub organization."
https://docs.zephyrproject.org/latest/develop/modules.html

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

The following west manifest projects have changed revision in this Pull Request:

Name	Old Revision	New Revision	Diff
executorch 🆕	N/A (Added)	pytorch/executorch@main	N/A

⛔ DNM label due to: 1 added project

Note: This message is automatically posted and updated by the Manifest GitHub Action.

[BujSet]

"All modules included in the default manifest shall be hosted in repositories under the zephyrproject-rtos GitHub organization." https://docs.zephyrproject.org/latest/develop/modules.html

Hi @JarmouniA, could I get a bit of clarification on what steps are needed to start this process? As I understand it, an executorch repo needs to be created and hosted under the zephyrproject-rtos org. Is there a way to request this repo be created and simply pull from executorch’s main branch or is this something I can do on my own without being a member of the zephyrproject-rtos org?

[JarmouniA]

@BujSet https://docs.zephyrproject.org/latest/develop/modules.html#process-for-submitting-a-new-module