samples: move watchdog example code from Documentation

Move watchdog examples to samples and remove it from Documentation
Makefile. Create a new Makefile to build watchdog. It can be built
from top level directory or from watchdog directory:

Run make -C samples/watchdog or cd samples/watchdog; make

Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

1 files changed, 0 insertions, 24 deletions

diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c
deleted file mode 100644
index ba45803a2216..000000000000
--- a/Documentation/watchdog/src/watchdog-simple.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-int main(void)
-{
-	int fd = open("/dev/watchdog", O_WRONLY);
-	int ret = 0;
-	if (fd == -1) {
-		perror("watchdog");
-		exit(EXIT_FAILURE);
-	}
-	while (1) {
-		ret = write(fd, "\0", 1);
-		if (ret != 1) {
-			ret = -1;
-			break;
-		}
-		sleep(10);
-	}
-	close(fd);
-	return ret;
-}