tree c368af69042f3bb882fce2732c6666f9f30d7cc4
parent 6a5e9c466a0dd2dbef031eb6bcd68d5758c09480
author Johann <johann.koenig@duck.com> 1535571439 -0700
committer Johann Koenig <johannkoenig@google.com> 1535579174 +0000

rtcd.pl: fix --required flag

Cherrypick from libvpx 36840e

Always parse --required options. Previously they were only parsed for
x86_64.

Make entries passed in additive if there are existing required flags.

Mark 'neon' as required for armv8/aarch64.

Change-Id: I26425727c5979e22967bcc4f1e517e3044bbc6d5