More sys_uart packets (#11332)

* Additional sys_uart packets added

Utilities/simple_ringbuf.h

@@ -19,8 +19,15 @@ public:
 	simple_ringbuf() {};
 	simple_ringbuf(u32 size);
 
+	simple_ringbuf(const simple_ringbuf&) = delete;
+	simple_ringbuf& operator=(const simple_ringbuf&) = delete;
+
+	simple_ringbuf(simple_ringbuf&& other);
+	simple_ringbuf& operator=(simple_ringbuf&& other);
+
 	u32 get_free_size();
 	u32 get_used_size();
+	u32 get_total_size();
 
 	// Thread unsafe functions.
 	void set_buf_size(u32 size);