Bug 338445 amd64 vbit-test fails with unknown opcodes used by arm64 VEX.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14327 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/NEWS b/NEWS
index 2c1ae5a..465ab22 100644
--- a/NEWS
+++ b/NEWS
@@ -211,6 +211,7 @@
 338115  DRD: computed conflict set differs from actual after fork
 338160  implement display of thread local storage in gdbsrv
 338205  configure.ac and check for -Wno-tautological-compare
+338445  amd64 vbit-test fails with unknown opcodes used by arm64 VEX
 n-i-bz  Fix KVM_CREATE_IRQCHIP ioctl handling
 n-i-bz  s390x: Fix memory corruption for multithreaded applications
 n-i-bz  vex arm->IR: allow PC as basereg in some LDRD cases