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Prepare for TF-M v2.3#2714

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valeriosetti wants to merge 1 commit intomcu-tools:mainfrom
valeriosetti:tfm-bump-2.3
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Prepare for TF-M v2.3#2714
valeriosetti wants to merge 1 commit intomcu-tools:mainfrom
valeriosetti:tfm-bump-2.3

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Apply changes that are required for TF-M v2.3:

  • update MCUboot to v2.4.0-RC1, which is the one being pointed to TF-M
  • apply TF-M's extra patch

When MCUBOOT_BUILTIN_KEY is enabled, the key id TLV entry is added
to the image with the new IMAGE_TLV_KEYID type. Parse this entry while
validating the image to identify the key used to sign the image.
In this scenario the IMAGE_TLV_KEYHASH or IMAGE_TLV_PUBKEY entries
are not needed.

This replaces the previous PoC code that simply assigned the
image_index to the key ID.

Signed-off-by: Maulik Patel <maulik.patel@arm.com>
Signed-off-by: David Vincze <david.vincze@arm.com>
Change-Id: If194aaf281d34c3a2260881b9831d64c3cf386d3
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