Requires Neon (aka. Advanced SIMD). Looks up 16 characters at a time,
for a 2-3x perfomance improvement, and a ~30% speedup on the strtok &
strsep benchtests, as tested on Cortex A-{53,72}.
Signed-off-by: remph <lhr@disroot.org>
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
remph