west.yml: MCUboot synchronization from upstream

[nordicjm]

Update Zephyr fork of MCUboot to revision:
eb942067989569f9cf319b087d0bb16b16effd86

Brings following Zephyr relevant fixes:

• eb942067 Allow bootstrapping for multiple images
• d59ae346 boot_serial: Support sha256, sha384 and sha512
• bcffc62c boot: bootutil: boot_record: Fix issue with saving image data
• 099f4284 boot: zephyr: Add fallback for overhead calculation when auto fails
• ab014436 boards: mcxn947_qspi: fix mcuboot partition allocation
• bd7423d1 boot: zephyr: Add warning on default key file usage
• a03c95f6 doc: remove repetition
• 040fc42a boot/zephyr: Load image to RAM on single loader
• 84c68ace boot/zephyr: Add CONFIG_SINGLE_APPLICATION_SLOT_RAM_LOAD
• 77d911f4 boot/bootutil: Add MCUBOOT_SINGLE_APPLICATION_SLOT_RAM_LOAD mode
• 0c721da7 boot/bootutil: Split RAM load code to its own file

Notes on process:

1. The MCUboot update from mcu-tools/mcuboot/main with the SHA used in west.yaml is already synchronized to zephyrproject-rtos/mcuboot/upstream-sync branch, and is available in the Zephyr fork of MCUboot.
2. The [DNM] on this PR should be kept until the PR passes all tests and is accepted.
3. Once the PR passes all tests and gets accepted, the upstream-sync branch should be fast-forward merged to zephyrproject-rtos/mcuboot/main branch and [DNM] should be removed.
4. After the main branch gets updated, this PR does not require further changes and should be merged as is.

[zephyrbot]

The following west manifest projects have changed revision in this Pull Request:

Name	Old Revision	New Revision	Diff
mcuboot	zephyrproject-rtos/mcuboot@f74b77c (main)	zephyrproject-rtos/mcuboot@eb94206 (upstream-sync)	zephyrproject-rtos/[email protected]

✅ All manifest checks OK

Note: This message is automatically posted and updated by the Manifest GitHub Action.