Add debian package for watchdog

Apply the debian stuff from meta-lat (open sources of LAT:
git://github.com/Wind-River/meta-lat), in which LAT has a local
patch for watchdog:

data/debian/watchdog/metadata_patches/0001-customize-watchdog-for-ostree.patch

It passed build-pkgs -p watchdog, build-image, and install,
boot test. The 0001-customize-watchdog-for-ostree.patch addes a
script used by ostree management, which should be verfied by
ostree function test.

Depends-On: https://review.opendev.org/c/starlingx/tools/+/817170

Story: 2009221
Task: 43405
Signed-off-by: Yue Tao <yue.tao@windriver.com>
Change-Id: I454759d652eead3586dcee75504b25fd055f85cc

base/watchdog/debian/dl_hook

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+LOCAL_DIR=$1
+PKGNAME=watchdog
+BASE_DIR=${STX_GIT_SRC_DIR}
+PKG_DIR=${BASE_DIR}/meta-lat/data/debian/${PKGNAME}
+META_DIR=${PKG_DIR}/metadata_patches
+SRC_DIR=${PKG_DIR}/sources
+BASE_URL=https://snapshot.debian.org/archive/debian/20200424T151944Z/pool/main/w/${PKGNAME}
+MAJOR_VER="5.16"
+REVISION="1"
+VER=${MAJOR_VER}-${REVISION}
+DSC_FILE=${PKGNAME}_${VER}.dsc
+dget -x ${BASE_URL}/${DSC_FILE}
+if [ $? != 0 ]; then
+	echo "Fail to download ${BASE_URL}/${DSC_FILE}"
+	exit -1
+fi
+cd ${LOCAL_DIR}
+for patch in $(ls ${META_DIR}/*.patch); do
+	patch -p1 < $patch || exit 1
+done
+cp ${SRC_DIR}/* .

base/watchdog/debian/meta_data.yaml

@@ -0,0 +1,6 @@
+---
+debver: 5.16-1
+dl_hook: dl_hook
+revision:
+  dist: $STX_DIST
+  PKG_GITREVCOUNT: true