Possibility to manage the new AxC firmware and optimization

Improvements

• Update code with the latest functions to manage the new AxC firmware
• Optimization of start-up time
• Bypass of the old method of reading the serial number when (S/N == 0) or (S/N == 0xFFFF)
• - Allows in supervisor mode to force a new S/N on an old firmware core without S/N
• Resolve ASRC management on AVBx3 without matrix
• - AxC-ADSP should be in slot 2 when in ASRC mode
• Fix the change to a new clock source that is not locked
• The lock status of a card with multi sources only reflect the current source...