test: caps: Add capabilities for QEMU 3.1.0

These are based on QEMU v3.1.0-rc2-41-g4822f1ee9e.
Acked-by: NPeter Krempa <pkrempa@redhat.com>
Signed-off-by: NErik Skultety <eskultet@redhat.com>

tests/qemucapabilitiestest.c

@@ -178,6 +178,7 @@ mymain(void)
     DO_TEST("x86_64", "caps_2.11.0");
     DO_TEST("x86_64", "caps_2.12.0");
     DO_TEST("x86_64", "caps_3.0.0");
+    DO_TEST("x86_64", "caps_3.1.0");
     DO_TEST("aarch64", "caps_2.6.0");
     DO_TEST("aarch64", "caps_2.10.0");
     DO_TEST("aarch64", "caps_2.12.0");