S390: Fix syscall list for s390x

[Ulrich Weigand]

Andreas Arnez wrote:

> This patch fixes a typo that caused the wrong syscall XML file to be
> used for s390x targets.
> 
> gdb/ChangeLog:
> 
> 	* s390-linux-tdep.c (s390_gdbarch_init): Use the correct syscall
> 	XML file for 64-bit targets.

This is OK.

Thanks,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU/Linux compilers and toolchain
  Ulrich.Weigand@de.ibm.com