qga: Add "guest-get-memory-block-info" to blacklist

Memory block commands are only supported for linux with sysfs,
"guest-get-memory-block-info" was not in blacklist for other
cases.

Reported on:
https://bugzilla.redhat.com/show_bug.cgi?id=1751431

Signed-off-by: Basil Salman <bsalman@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

qga/commands-posix.c

@@ -2730,7 +2730,8 @@ GList *ga_command_blacklist_init(GList *blacklist)
             "guest-suspend-hybrid", "guest-network-get-interfaces",
             "guest-get-vcpus", "guest-set-vcpus",
             "guest-get-memory-blocks", "guest-set-memory-blocks",
-            "guest-get-memory-block-size", NULL};
+            "guest-get-memory-block-size", "guest-get-memory-block-info",
+            NULL};
         char **p = (char **)list;
 
         while (*p) {

qga/commands-win32.c

@@ -1894,7 +1894,7 @@ GList *ga_command_blacklist_init(GList *blacklist)
         "guest-suspend-hybrid",
         "guest-set-vcpus",
         "guest-get-memory-blocks", "guest-set-memory-blocks",
-        "guest-get-memory-block-size",
+        "guest-get-memory-block-size", "guest-get-memory-block-info",
         NULL};
     char **p = (char **)list_unsupported;