qemu: capabilities: Probe QMP schema before probing commands

All supported QEMU versions now support query-qmp-schema. In the future
it will be possible to use the output of query-qmp-schema to also detect
commands reliably.

Since we are at the point where we have the least amount of .replies
files needing changing for a long time, move the 'query-qmp-schema' bits
before 'query-commands' to prepare for the future.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>

src/qemu/qemu_capabilities.c

@@ -5293,6 +5293,8 @@ virQEMUCapsInitQMPMonitor(virQEMUCaps *qemuCaps,
     /* initiate all capabilities based on qemu version */
     virQEMUCapsInitQMPVersionCaps(qemuCaps);
 
+    if (virQEMUCapsProbeQMPSchemaCapabilities(qemuCaps, mon) < 0)
+        return -1;
     if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0)
         return -1;
 
@@ -5321,8 +5323,6 @@ virQEMUCapsInitQMPMonitor(virQEMUCaps *qemuCaps,
         return -1;
     if (virQEMUCapsProbeQMPMigrationCapabilities(qemuCaps, mon) < 0)
         return -1;
-    if (virQEMUCapsProbeQMPSchemaCapabilities(qemuCaps, mon) < 0)
-        return -1;
     if (virQEMUCapsProbeQMPGICCapabilities(qemuCaps, mon) < 0)
         return -1;
     if (virQEMUCapsProbeQMPSEVCapabilities(qemuCaps, mon) < 0)