Revert "Try to fix iOS build by disabling assembly on x86"
Revert "Try to fix iOS build by disabling assembly on x86"

This reverts commit 81175eeb5ae1e0281f0d7591702160a67cda43f7.

We can build assembly, but it needs a fix to properly
use gas-preprocessor

fluendo/cerbero,nirbheek/cerbero,nirbheek/cerbero,GStreamer/cerbero,GStreamer/cerbero,GStreamer/cerbero,atsushieno/cerbero,centricular/cerbero,atsushieno/cerbero,fluendo/cerbero,GStreamer/cerbero,centricular/cerbero,centricular/cerbero,fluendo/cerbero,centricular/cerbero,nirbheek/cerbero,atsushieno/cerbero,fluendo/cerbero,atsushieno/cerbero,fluendo/cerbero,centricular/cerbero,atsushieno/cerbero,GStreamer/cerbero,nirbheek/cerbero