fix: install depend pkg script

tools/misc/insdeppkg.sh

@@ -5,10 +5,15 @@ DepPkgDir=./omc-dep-pkg
 if [ $1 != "" ]; then
     DepPkgDir=$1
 fi
-
+if [ -e ${DepPkgDir} ]; then
+	echo "${DepPkgDir}: Not such file or directory"
+	exit 1
+fi
 echo "Install omc depend package"
 for pkgdir in ${DepPkgDir}/*; do 
 	echo "Installing ${pkgdir} depend package ..."
 	cd ${pkgdir};
 	dpkg -i --ignore-depends= *.deb; 
-done
+done
+
+exit 0