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>
11 files changed