[patch] s390: support for movstr

[Andreas Krebbel]

> 2005-08-25  Adrian Straetling  <straetling@de.ibm.com>
> 
> 	* config/s390/s390.md: ("movstr", "*movstr"): Add patterns.
> 	(UNSPEC_MVST): New constant.

Applied to mainline.
Thanks.

Bye,

-Andreas-