testsuite: Change gcc.dg/vect/pr56541.c target.

My last commit changed the target selector to
 ! vect_floatint_cvt
when it should of course be
 vect_floatint_cvt.

Fix this.

gcc/testsuite/ChangeLog:

	* gcc.dg/vect/pr56541.c: Fix target selector.
diff --git a/gcc/testsuite/gcc.dg/vect/pr56541.c b/gcc/testsuite/gcc.dg/vect/pr56541.c
index e1cee6d..fa86142 100644
--- a/gcc/testsuite/gcc.dg/vect/pr56541.c
+++ b/gcc/testsuite/gcc.dg/vect/pr56541.c
@@ -24,4 +24,4 @@
     }
 }
 
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { ! vect_floatint_cvt } xfail { ! vect_cond_mixed } } } } */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_floatint_cvt } xfail { ! vect_cond_mixed } } } } */