manifest: order subsystems alphabetically
manifest: order subsystems alphabetically

Order the subsystems in the manifest file alphabetically, as they
actually should be according to the comment within the manifest file.

Signed-off-by: Benedikt Schmidt <15c2bbfe1d8dcfe05fdbc9b78c35d10937b406a6@embedded-solutions.at>
galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,galak/zephyr,finikorg/zephyr,finikorg/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr