[nrf upmerge] crypto: enable missing key type

[RobertGalatNordic]

enable CHACHA20

CI parameters

Github_actions:
  #(branch, hash, pull/XXX/head)
  NRF_revision: pull/16860/head

  # Do not change after creating PR
  Create_NRF_PR: false
Jenkins:
  test-sdk-sidewalk: master

Description

JIRA ticket:

Self review

• There is no commented code.
• There are no TODO/FIXME comments without associated issue ticket.
• Commits are properly organized.
• Change has been tested.
• Tests were updated (if applicable).

[ktaborowski]

If it enables nrfconnect/sdk-nrf#16860, it might go
But afaik Sidewalk doesn't require ChaCha20 algo - it uses AES-GCM. So it should be some indirect dependency, which should be set automatically.