Fix sim fallout from arm assembler complaining about symbols named as insns

[Nicholas Clifton]

Hi Hans-Peter,

> I'm not completely sure this new gas warning is a good thing.
> I mean, symbols such as those below don't really interfere with
> the insn namespace, do they?

No, but they can be a little bit confusing and the problem I was trying 
to solve, of an instruction name being mistakenly treated as a symbol, 
is genuine. It would be better I agree to restrict this check to just 
the case where the "=" assignment operator is being used, but I did not 
want to modify generic code.  Maybe I should have done that. :-(


> To wit, right now, the new symbol "sanity-check" causes failures
> for --target arm-eabi check-sim:

So it does.  I should have checked that before committing the patch.  Sorry.


> +2015-05-02  Hans-Peter Nilsson  <hp@axis.com>
> +
> +	* bl.cgs (bl0): Rename from symbol colliding with insn name bl.
> +	* iwmmxt/tmia.cgs (tmia0): Similar.
> +	* iwmmxt/tmiaph.cgs (tmiaph0): Similar.
> +	* iwmmxt/waligni.cgs (waligni0): Similar.
> +	* iwmmxt/wand.cgs (wand0): Similar.
> +	* iwmmxt/wandn.cgs (wandn0): Similar.
> +	* iwmmxt/wmov.cgs (wmov0): Similar.
> +	* iwmmxt/wor.cgs (wor0): Similar.
> +	* iwmmxt/wshufh.cgs (wshuf0): Similar.
> +	* iwmmxt/wxor.cgs (wxor0): Similar.
> +	* iwmmxt/wzero.cgs (wzero0): Similar.
> +	* xscale/mia.cgs (mia0): Similar.
> +	* xscale/miaph.cgs (miaph0): Similar.

I think that this is a good solution - please apply.

Cheers
   Nick