s390: Give function static linkage. Also avoids a compiler warning.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2542 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/priv/guest_s390_toIR.c b/priv/guest_s390_toIR.c
index 8215b2a..4ea8bb8 100644
--- a/priv/guest_s390_toIR.c
+++ b/priv/guest_s390_toIR.c
@@ -8201,7 +8201,7 @@
    return "srnmb";
 }
 
- void
+static void
 s390_irgen_srnmb_wrapper(UChar b2, UShort d2)
 {
    if (b2 == 0) {  /* This is the typical case */