The tests need to know musl can support symbol visibility.

Upstream-URL: https://sourceware.org/bugzilla/show_bug.cgi?id=30915

--- binutils-2.41/ld/testsuite/ld-vsb/main.c.old	2023-07-02 18:00:00.000000000 -0500
+++ binutils-2.41/ld/testsuite/ld-vsb/main.c	2023-09-29 03:03:53.103603661 -0500
@@ -5,9 +5,9 @@
 int
 main (void)
 {
-#if defined (__GLIBC__) && (__GLIBC__ > 2 \
-			    || (__GLIBC__ == 2 \
-				&&  __GLIBC_MINOR__ >= 2))
+#if !defined (__GLIBC__) || (__GLIBC__ > 2 \
+			     || (__GLIBC__ == 2 \
+				 &&  __GLIBC_MINOR__ >= 2))
   puts ("yes");
 #else
   puts ("no");