Support for FLX-MROD firmware type
- In flx-init.cpp: an addition to si5345_clock_set(), automatically selecting the proper chip configuration settings on the basis of the FIRMWARE_MODE register (an additional settings array 'newstyle_t3_MROD[][2]' was added for the 'FLX-MROD' firmware type).
- In flx-info.cpp take the extended range of firmware modes/types into account (currently 8 defined).