Arm backend: Bump amount of DDR in corstone320

[perheld]

Make it the same as corstone300 to be able to run larger models.

Signed-off-by: per.held@arm.com
Change-Id: Ic180de91ec25544a35474e2850d99b0b8b925b59

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218 @mansnils @Sebastian-Larsson @robell

[pytorch-bot]

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❌ 1 New Failure, 2 Cancelled Jobs, 3 Unrelated Failures

As of commit 2848472 with merge base fb90480 ():

NEW FAILURE - The following job has failed:

• pull / test-multimodal-linux (gemma3-4b) / linux-job (gh)
  RuntimeError: Command docker exec -t 4e8624c932b9e92182fe2161993dd9c83487254edc41346414fdcf829c97de68 /exec failed with exit code 139

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• Apple / build-frameworks-ios / macos-job (gh)
  ##[error]The operation was canceled.
• trunk / test-models-macos-coreml (resnet50) / macos-job (gh)
  ##[error]The operation was canceled.

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / unittest / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• trunk / unittest-release / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[Copilot]

Pull request overview

Updates the Corstone-320 executor runner linker script to provide a larger DDR region (matching Corstone-300) so larger models can be linked/loaded for Arm backend bare-metal examples.

Changes:

• Increase Corstone-320 DDR memory region length from 0x10000000 to 0x60000000.
• Update the copyright header year range.

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[perheld]

This might not be the way to solve this. I need to investigate this further.