volk: add SIMD implementation for fixed phase rotation

Removed whitespace and added dtools/bin/remove-whitespace as a tool to do this in the future.

The sed script was provided by Moritz Fischer.

volk: add include for config.h to cc file

volk_32f_s32f_convert_16i_a was also a problem,
previously volk_32f_s32f_convert_16i_u was fixed to have config.h.
I heard putting config h stuff into public headers was bad practice.
Including config.h into the generated cc file should fix this issue from now on.

volk: turning off sse implementation of complex dot product for 32-bit machines until it's fixed.

volk: include config.h to have rintf in windows/msvc.