RSE: Disable shallow clone for MCUboot

RSE points to a specific commit of MCUboot on the tfm-2.3.0
feature branch. Disable shallow cloning of MCUboot for RSE as the
required commit is not on the default branch and may not be the tip of
the feature branch, meaning it might not be included in a shallow clone.

Keep shallow cloning enabled by default for other platforms.

Signed-off-by: David Vincze <david.vincze@arm.com>
Change-Id: I34097692cc6118c47629656bea35b7b205999fbd

Author: davidvincze

bl2/ext/mcuboot/CMakeLists.txt

@@ -18,7 +18,7 @@ fetch_remote_library(
         GIT_REPOSITORY      ${MCUBOOT_GIT_REMOTE}
         GIT_TAG             ${MCUBOOT_VERSION}
         GIT_PROGRESS        TRUE
-        GIT_SHALLOW         TRUE
+        GIT_SHALLOW         ${MCUBOOT_GIT_SHALLOW}
         GIT_SUBMODULES      "docs"
 )
 

config/config_base.cmake

@@ -42,6 +42,7 @@ set(TF_PSA_CRYPTO_GIT_REMOTE            "https://github.com/Mbed-TLS/TF-PSA-Cryp
 set(MCUBOOT_PATH                        "DOWNLOAD"   CACHE PATH     "Path to MCUboot (or DOWNLOAD to fetch automatically")
 set(MCUBOOT_VERSION                     "v2.4.0"     CACHE STRING   "The version of MCUboot to use")
 set(MCUBOOT_GIT_REMOTE                  "https://github.com/mcu-tools/mcuboot.git" CACHE STRING "The URL to retrieve MCUboot from.")
+set(MCUBOOT_GIT_SHALLOW                 ON           CACHE BOOL     "Whether to perform a shallow clone of the MCUboot repository")
 set(MCUBOOT_PATCH_DIR                   "${CMAKE_SOURCE_DIR}/lib/ext/mcuboot"      CACHE PATH   "Path to local folder which contains patches for MCUboot")
 set(MCUBOOT_FORCE_PATCH                 OFF         CACHE BOOL      "Always apply MCUboot patches")
 

platform/ext/target/arm/rse/common/config.cmake

@@ -127,6 +127,7 @@ set(RSE_SKU_ENABLED                     OFF        CACHE BOOL "Enable stock keep
 ######################### BL2 ##################################################
 
 set(MCUBOOT_VERSION                   "e2a6d0b"        CACHE STRING    "The version of MCUboot to use")
+set(MCUBOOT_GIT_SHALLOW               OFF              CACHE BOOL      "Whether to perform a shallow clone of the MCUboot repository")
 set(MCUBOOT_PATCH_DIR                 ""               CACHE PATH      "Path to local folder which contains patches for MCUboot")
 set(MCUBOOT_IMAGE_NUMBER              4                CACHE STRING    "Number of images supported by MCUBoot")
 set(MCUBOOT_SIGNATURE_TYPE            "EC-P256"        CACHE STRING    "Algorithm to use for signature validation [RSA-2048, RSA-3072, EC-P256, EC-P384]")