Track vex r2894 (representation changes to arm64 FPSR)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14120 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/memcheck/mc_machine.c b/memcheck/mc_machine.c
index 94f8983..7074107 100644
--- a/memcheck/mc_machine.c
+++ b/memcheck/mc_machine.c
@@ -1053,7 +1053,7 @@
    if (o >= GOF(Q31)  && o+sz <= GOF(Q31)+SZB(Q31)) return GOF(Q31);
 
    if (o == GOF(FPCR) && sz == 4) return -1; // untracked
-   if (o == GOF(FPSR) && sz == 4) return -1; // untracked
+   if (o == GOF(QCFLAG) && sz == 16) return o;
 
    if (o == GOF(CMSTART) && sz == 8) return -1; // untracked
    if (o == GOF(CMLEN)   && sz == 8) return -1; // untracked