main: Reword "no supported sensors" debug message

To stop users thinking that we'd be responsible for providing support
for their sensors when it's the kernel's job.

src/iio-sensor-proxy.c

@@ -615,7 +615,7 @@ name_acquired_handler (GDBusConnection *connection,
 
 bail:
 	data->ret = 0;
-	g_debug ("Could not find any supported sensors");
+	g_debug ("No sensors or missing kernel drivers for the sensors");
 	g_main_loop_quit (data->loop);
 }