avutil/cpu: add aarch64 entries to 2nd table

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil/cpu: Make cpu flag names match between cpu-test and av_parse_cpu_caps() tables

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil/cpu: check av_parse_cpu_caps() table during cpu-test

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>