--disable-avx and --only-config flags

Add two flags to make the script more flexible:
--disable-avx: do not generate AVX and AVX2 sources.
--only-configs: only generate configuration header (i.e. no GN or GYP files).

and verified nothing changed in the checkout.
./ --disable-avx
and verified AVX was disabled.
./ --only-configs
with a modified .gypi and verified it was not overwritten.

Review URL: .
1 file changed