Add testcases for CU24. Part of fixing #289839.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12771 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/docs/internals/s390-opcodes.csv b/docs/internals/s390-opcodes.csv
index 82fe334..3767b70 100644
--- a/docs/internals/s390-opcodes.csv
+++ b/docs/internals/s390-opcodes.csv
@@ -665,7 +665,7 @@
 stckf,"store clock fast",implemented,
 mvcos,"move with optional specifications",N/A,"privileged instruction"
 lptea,"load page-table-entry address",N/A,"privileged instruction"
-cu24,"convert utf-16 to utf-32","not implemented","open bugzilla"
+cu24,"convert utf-16 to utf-32",implemented
 cu21,"convert utf-16 to utf-8",implemented
 cu42,"convert utf-32 to utf-16","not implemented","open bugzilla"
 cu41,"convert utf-32 to utf-8","not implemented","open bugzilla"