s390: valgrind side support for PFPO. New hwcap added.
See companion patch VEX r2719.

Patch by Maran Pakkirisamy (maranp@linux.vnet.ibm.com).
Part of fixing BZ #307113


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13387 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/tests/s390x_features.c b/tests/s390x_features.c
index 265e22a..a25b189 100644
--- a/tests/s390x_features.c
+++ b/tests/s390x_features.c
@@ -227,6 +227,8 @@
       match = facilities & FAC_BIT(37);
    } else if (strcmp(feature, "s390x-dfp") == 0 ) {
       match = facilities & FAC_BIT(42);
+   } else if (strcmp(feature, "s390x-pfpo") == 0 ) {
+      match = facilities & FAC_BIT(44);
    } else {
       return 2;          // Unrecognised feature.
    }