v1.2.2: Bugfix version for ``encoder`` module

Bugfix version for stepgen module, which was affected by an error in the encoder module.

Due to an upgrade in the detection / comparison of the version of the firmware this version will show a
warning message if older firmware is used (NOTE: the communication has not changed, thus re-compilation is
not required). In the next minor release (i.e. version 1.3) this change will correctly enforce recompilation
of the firmware. A change in minor version (i.e. 1.2 -> 1.3) indicates a modification in communication
protocol and thus requires an update of the firmware.

• driver:

  • encoder: counts and position of encoder can be reset (#74)
  • encoder: incorrect required read buffer reported has been corrected. This affected the module stepgen (#79)
  • watchdog: the watchdog is reset when the card is reset. Prevents the has_bitten message when LinuxCNC
    is restarted without power-cycling the card. (#80)
  • Fixed showing the correct version of LitexCNC in HAL.
  • Temporary fixed comparison between version of FPGA and driver. When the minor version changes in an upcoming
    release, the driver will now correctly enforce a recompilation of the firmware.

• cli:

  • install_toolchain: Fixed issue with detection of OS on desktop. Also git and openocd are installed
    on x64-architecture systems (#78).