CMake: link TF-M for both memory partition

This patch introduces the MCUBOOT_NO_SWAP compiler switch:
  - Default value is False to preserve swapping functionality to be
    default
  - When disabling it then TF-M is built in one instance:
    - tfm_sign.bin:   linked to run in XIP mode from slot 0 memory
      partition
  - When enabling it then TF-M is built in two instances:
    - tfm_sign_0.bin: linked to run in XIP mode from slot 0 memory
      partition
    - tfm_sign_1.bin: linked to run in XIP mode from slot 1 memory
      partition

Change-Id: I2757601295c80a42aba351a6d89c17f78dad3a0f
Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Co-Authored-By: Mate Toth-Pal <mate.toth-pal@arm.com>
Co-Authored-By: Gyorgy Szing <Gyorgy.Szing@arm.com>
diff --git a/ConfigRegression.cmake b/ConfigRegression.cmake
index c557ef8..975a173 100755
--- a/ConfigRegression.cmake
+++ b/ConfigRegression.cmake
@@ -26,6 +26,9 @@
 #definitions) based on these.
 set (REGRESSION True)
 set (CORE_TEST False)
+
+#BL2 bootloader(MCUBoot) related settings
 set (BL2 True)
+set (MCUBOOT_NO_SWAP False)
 
 include ("${CMAKE_CURRENT_LIST_DIR}/CommonConfig.cmake")