volk: removing unused variables in neon
volk: adding string.h to puppet for memset calls.
digital: Fix error in HDLC framer rejecting packets when falsely determined to be
"out of frame".
Merge remote-tracking branch 'bistromath/hdlc' into maint
Merge branch 'maint'
Merge remote-tracking branch 'nwest/neon'
cmake: fixes to cmake for setting flags properly and removing dups.