[patch/mips] Fix simple floating-point struct for eabi

[Andrew Cagney]

Michael Snyder wrote:
> 
> Andrew Cagney wrote:
> >
> > FYI,
> >
> > The attatched fixes the case where GDB is calling an inferior function
> > with a structure containing just a single floating point value.  The
> > EABI likes to squeeze it into a floating-point register.
> 
> Hmmm, I'll have to look at this!  Sparc64 likes to do the same thing.

FYI, If the call-ar-st.exp tests are passing then it is probably ok.

	Andrew