HV: vuart: move the vuart code to dm directory

As there is a requirement for conmunication between VMs on uart port,
but for Pre-launched VM, the only way is to create vuart for each VM and
connect them at hypervisor side. So, the vuart code should be moved from
/debug to /dm so that they can also be used in release version.
For the console related code, as no need to support in release version,
so leave them at debug directory.

Tracked-On: #2987
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/Makefile

@@ -225,6 +225,7 @@ C_SRCS += hw/pci.c
 C_SRCS += dm/vpic.c
 C_SRCS += dm/vrtc.c
 C_SRCS += dm/vioapic.c
+C_SRCS += dm/vuart.c
 C_SRCS += dm/io_req.c
 C_SRCS += dm/vpci/vdev.c
 C_SRCS += dm/vpci/vpci.c

hypervisor/release/vuart.c

@@ -1,23 +0,0 @@
-/*
- * Copyright (C) 2018 Intel Corporation. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <types.h>
-#include <vm.h>
-
-void vuart_init(__unused struct acrn_vm *vm, __unused struct vuart_config *vu_config) {}
-void vuart_deinit(__unused struct acrn_vm *vm) {}
-struct acrn_vuart *vuart_console_active(void)
-{
-	return NULL;
-}
-
-void vuart_console_tx_chars(__unused struct acrn_vuart *vu) {}
-void vuart_console_rx_chars(__unused struct acrn_vuart *vu) {}
-
-bool is_vuart_intx(__unused struct acrn_vm *vm, __unused uint32_t intx_pin)
-{
-	return false;
-}