[PATCH v2] Use integer constants in mpa.c

[Siddhesh Poyarekar]

On Tue, Mar 26, 2013 at 07:30:43AM -0700, Richard Henderson wrote:
> 
> Can we expect the ZERO et al defines to go away too?
> 

Yes, that's what I'm working on now.  I'm trying to do this right, so
I aim to reformat each file I touch before I remove the defines.

Siddhesh