scripts: Update west command for uploading keys to KMU

[fundakol]

Extended NcsProvision command for another keys slots.

[NordicBuilder]

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Build number: 2

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Enabled	Name	Description
	ci-disabled	Disable the ci execution
	ci-all-test	Run all of ci, no test spec filtering will be done
	ci-force-downstream	Force execution of downstream even if twister fails
	ci-run-twister	Force run twister
	ci-run-zephyr-twister	Force run zephyr twister

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