Build: Tag dependencies for tfm 1.2 release

Change-Id: I8d140ca75388fca72c0314cfc4001b1173337765
Signed-off-by: Raef Coles <raef.coles@arm.com>
diff --git a/config/config_default.cmake b/config/config_default.cmake
index 5c2f189..afa0922 100644
--- a/config/config_default.cmake
+++ b/config/config_default.cmake
@@ -142,4 +142,4 @@
 set(MCUBOOT_VERSION                     "1.7.0-rc1" CACHE STRING    "The version of MCUboot to use")
 
 set(PSA_ARCH_TESTS_PATH                 "DOWNLOAD"  CACHE PATH      "Path to PSA arch tests (or DOWNLOAD to fetch automatically")
-set(PSA_ARCH_TESTS_VERSION              "master"    CACHE STRING    "The version of PSA arch tests to use")
+set(PSA_ARCH_TESTS_VERSION              "0ffdd24"   CACHE STRING    "The version of PSA arch tests to use")