Prototype-style function definition for wcschr for POWER.  Upstream,

this was part of:

commit 05b5cd1ce51247f986e66b90ad672e89b4b98333

Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>

Date:   Mon Oct 14 09:23:12 2013 -0500

    PowerPC: multiarch wcschr for PowerPC32

diff --git a/sysdeps/powerpc/powerpc32/power6/wcschr.c b/sysdeps/powerpc/powerpc32/power6/wcschr.c

index 3b4cca15face81da..70efc574f5a13e5a 100644

--- a/sysdeps/powerpc/powerpc32/power6/wcschr.c

+++ b/sysdeps/powerpc/powerpc32/power6/wcschr.c

@@ -21,9 +21,7 @@

 /* Find the first occurrence of WC in WCS.  */

 wchar_t *

-wcschr (wcs, wc)

-     const wchar_t *wcs;

-     const wchar_t wc;

+wcschr (const wchar_t *wcs, const wchar_t wc)

 {

   const wchar_t *wcs2 = wcs + 1;