Soft-float cleanup

- UseSoftFloat target option is removed from upstream.  Remove its use
  and update the comment on how to skip FPU and use software
- Remove a stale FIXME about auto-detecting the presence of hardware
  FPU.  It is unlikely that any processor doesn't have an FPU these
- When generating code use soft-float ABI.  This matches what is done
  for ARM in the rest of Android.

Change-Id: I1255ca9d30dd0e08d4de0a01cdc8bd9317a16332
1 file changed