mcuboot: Make ED25519 signature default for nrf54l series

MCUboot for nRF54l15 will be built with support for ED25519
by default and application images will be signed with ED25519
signature.
The MCUboot partition size, for this configuration, is set
to 0xd000.

Signed-off-by: Dominik Ermel <[email protected]>
Signed-off-by: Marek Pieta <[email protected]>

Author: de-nordic

modules/mcuboot/boot/zephyr/Kconfig

@@ -39,6 +39,7 @@ config PM_PARTITION_SIZE_MCUBOOT
 	hex "Flash space allocated for the MCUboot partition" if !BOOT_USE_MIN_PARTITION_SIZE
 	default 0xb800 if MCUBOOT_MCUBOOT_IMAGE_NUMBER != -1 && SOC_SERIES_NRF54LX
 	default 0xbe00 if MCUBOOT_MCUBOOT_IMAGE_NUMBER != -1 && !SOC_SERIES_NRF54LX
+	default 0xd000 if SOC_SERIES_NRF54LX && BOOT_SIGNATURE_TYPE_ED25519 && !BOOT_SIGNATURE_USING_KMU
 	default 0xc000
 	help
 	  Flash space set aside for the MCUboot partition.

sysbuild/Kconfig.mcuboot

@@ -138,6 +138,7 @@ choice BOOT_SIGNATURE_TYPE
 	default BOOT_SIGNATURE_TYPE_RSA if THINGY91_STATIC_PARTITIONS_FACTORY
 	default BOOT_SIGNATURE_TYPE_ECDSA_P256 if ((SOC_NRF52840 || SOC_SERIES_NRF91X) && !BOARD_THINGY91_NRF9160 && !BOARD_THINGY91_NRF52840)
 	default BOOT_SIGNATURE_TYPE_ECDSA_P256 if SECURE_BOOT_APPCORE
+	default BOOT_SIGNATURE_TYPE_ED25519 if SOC_SERIES_NRF54LX
 
 endchoice