west.yml: update hal_atmel to support sams70 soc's

[mcscholtz]

This update adds support for sams70 soc's to the hal_atmel repo.

[zephyrbot]

The following west manifest projects have been modified in this Pull Request:

Name	Old Revision	New Revision	Diff
hal_atmel	zephyrproject-rtos/hal_atmel@942d664	zephyrproject-rtos/hal_atmel#37	zephyrproject-rtos/hal_atmel#37/files

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

[github-actions]

This pull request has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this pull request will automatically be closed in 14 days. Note, that you can always re-open a closed pull request at any time.

[github-actions]

This pull request has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this pull request will automatically be closed in 14 days. Note, that you can always re-open a closed pull request at any time.