msvcrt: Don't forward wcschr to ntdll.

dlls/msvcrt/msvcrt.spec

@@ -1482,7 +1482,7 @@
 # stub wcrtomb_s(ptr ptr long long ptr)
 @ cdecl wcscat(wstr wstr) ntdll.wcscat
 @ cdecl wcscat_s(wstr long wstr) MSVCRT_wcscat_s
-@ cdecl wcschr(wstr long) ntdll.wcschr
+@ cdecl wcschr(wstr long) MSVCRT_wcschr
 @ cdecl wcscmp(wstr wstr) ntdll.wcscmp
 @ cdecl wcscoll(wstr wstr) MSVCRT_wcscoll
 @ cdecl wcscpy(ptr wstr) ntdll.wcscpy

dlls/msvcrt/wcs.c

@@ -1840,3 +1840,11 @@ int CDECL MSVCRT_towlower(MSVCRT_wint_t c)
 {
     return MSVCRT__towlower_l(c, NULL);
 }
+
+/*********************************************************************
+ *              wcschr (MSVCRT.@)
+ */
+MSVCRT_wchar_t* CDECL MSVCRT_wcschr(const MSVCRT_wchar_t *str, MSVCRT_wchar_t ch)
+{
+    return strchrW(str, ch);
+}