Merge tag 'v6.0.0' into develop

6.0.0 - 2021-09-10
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Added
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- hdl: configurable auto byte swap in hardware, useful for SVEC to reduce software complexity
- hdl,sw: DMA data is always little-endian
- sw: software version validation against FPGA version
- bld: flawfinder check on software tools

Changed
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- sw: offsets are not anymore in uV but they are just raw values

Fixed
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- sw: security fixes detected by flawfinder
- sw: fixes detected by checkpatch.pl
- sw: style fixes detected by checkpatch.pl
- sw: improve compatibility with newer ( > 3.10) Linux kernel versions