Misc: lifemngr-daemon-on-UOS for windows

For cross-VM S5 notify via vUART, life_mngr service is running on UOS.
It is listening on COM2 to get SOS's commands.
The protocol is: SOS send "shutdown", UOS feedback "acked".

When SOS triggle shutdown, SOS can 1) check VM's status until UOS
stopped, 2) retry shutdown UOS normally with timeout.
So, no matter life_mngr server is running, SOS's shutdown procedure will
properly finish.

Tracked-On: #3564
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>

misc/life_mngr/life_mngr_win.c

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C)2019 Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <windows.h>
+#include <stdio.h>
+
+
+#define SOS_REQ         "shutdown"
+#define UOS_ACK         "acked"
+#define BUFF_SIZE       16U
+#define MSG_SIZE        8U
+
+HANDLE initCom(const char *szStr)
+{
+	HANDLE hCom = CreateFile(szStr,
+		GENERIC_READ | GENERIC_WRITE,
+		0,
+		NULL,
+		OPEN_EXISTING,
+		0,
+		NULL);
+
+	if (hCom == INVALID_HANDLE_VALUE)
+	{
+		printf("open %s failed!\n", szStr);
+		return hCom;
+	}
+
+	printf("open %s successed!\n", szStr);
+	SetupComm(hCom, 1024, 1024);
+
+	COMMTIMEOUTS TimeOuts;
+	TimeOuts.ReadIntervalTimeout = 100;		/* Maximum time between read chars. */
+	TimeOuts.ReadTotalTimeoutMultiplier = 5000;	/* Multiplier of characters.        */
+	TimeOuts.ReadTotalTimeoutConstant = 5000;	/* Constant in milliseconds.        */
+	TimeOuts.WriteTotalTimeoutMultiplier = 500;	/* Multiplier of characters.        */
+	TimeOuts.WriteTotalTimeoutConstant = 2000;	/* Constant in milliseconds.        */
+	SetCommTimeouts(hCom, &TimeOuts);
+
+	DCB dcb;
+	GetCommState(hCom, &dcb);
+	dcb.BaudRate = 115200;
+	dcb.ByteSize = 8;
+	dcb.Parity = NOPARITY;
+	dcb.StopBits = ONESTOPBIT;
+	SetCommState(hCom, &dcb);
+
+	return hCom;
+}
+
+int main()
+{
+	DWORD recvsize = 0;
+	char recvbuf[BUFF_SIZE];
+
+	HANDLE hCom = initCom("COM2");
+	if (hCom == INVALID_HANDLE_VALUE)
+	{
+		return -1;
+	}
+
+	do {
+		memset(recvbuf, 0, sizeof(recvbuf));
+		ReadFile(hCom, recvbuf, sizeof(recvbuf), &recvsize, NULL);
+		if (recvsize < MSG_SIZE)
+		{
+			continue;
+		}
+
+		if (strncmp(recvbuf, SOS_REQ, MSG_SIZE) == 0)
+		{
+			WriteFile(hCom, UOS_ACK, sizeof(UOS_ACK), NULL, NULL);
+			system("shutdown -s -t 0");
+			break;
+		}
+	} while (1);
+
+	return 0;
+}
+