[FIX] Fix clock crossing ipcore

This commit solves clock transfer issues with commands in tight
sequences. The fast and slow clock domain instances are redesigned using
a state machine. The fast clock domain instance uses a dedicated signal
for synchronizing the slow clock domain state machine.

Change-Id: Id86edcd897c8dccd64957aaaa6ebe1658cc88373
[FIX] Fix Microblaze cn-gpio demo compilation error

- Update processor instance check condition for target-microblaze.c
- Update License information for stack liboplkcn CMakeLists.txt

Change-Id: I2fa23e0f657006607ebd02510e82062b7e062da5
Signed-off-by: Joerg Zelenka <joerg.zelenka@br-automation.com>