[TASK] Add CMake macro for listing subdirectories

Change-Id: I5fd04b749ef05c5fb33357a219ee13c2ab584761
[TASK] Add Microblaze MN demo apps

- Add CMake project for demo_mn_embedded on Microblaze
- Add Microblaze MN-hostif demos to the list of available demos

Change-Id: I95353ac16718df8946894cba278d1bb0e73ba614
Signed-off-by: Joerg Zelenka <joerg.zelenka@br-automation.com>
[TASK] Add Microblaze MN PCP driver

- Add CMake project for drv_daemon on Microblaze
- Add Microblaze MN-hostif PCP driver to the list of available drivers
- Add daemon.c for Xilinx Microblaze

Change-Id: Ibbd8bf0ce399b2475e5839b536de1e35a669f8e3
Signed-off-by: Joerg Zelenka <joerg.zelenka@br-automation.com>