[PATCH v2 0/3] Support signing U-Boot FIT image without SPL

[Jamin Lin <jamin_lin@aspeedtech.com>]

v1:
- uboot-sign: Make SPL DTB public key injection optional

v2:
- Fix review issue
- Add test for signing U-Boot FIT image without SPL
- Refactor condition checks to use && and || instead of -a and -o
- Support signing U-Boot FIT image without SPL
  - The `SPL_DTB_BINARY` variable can be explicitly set to an empty string
    to indicate that no SPL is present.
  - The signing logic checks `SPL_DTB_BINARY` and skips injecting the
    key or verifying the SPL DTB if it is empty.
  - The FIT image generation and deployment are always performed if
    `UBOOT_FITIMAGE_ENABLE` is enabled, regardless of the SPL settings.

Jamin Lin (3):
  uboot-sign: Support signing U-Boot FIT image without SPL
  uboot-sign.bbclass: Refactor condition checks to use && and || instead
    of -a and -o
  oe-selftest: fitimage: Add test for signing U-Boot FIT image without
    SPL

 meta/classes-recipe/uboot-sign.bbclass   | 74 ++++++++++++++----------
 meta/lib/oeqa/selftest/cases/fitimage.py | 37 ++++++++++++
 2 files changed, 79 insertions(+), 32 deletions(-)

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2.43.0