[RFA] PR ld/20995: MIPS: Set GAS flags correctly for tests

[Maciej W. Rozycki]

On Wed, 18 Jan 2017, Alan Modra wrote:

> >  As this touches your TCL code in what is perhaps a non-obvious way I'll 
> 
> Looks good to me.

 Thanks.  Committed now then, with a description update to refer to the 
original commit, and backported.

  Maciej