QUICKSTART: Document new open-lldp build dependencies

There were a few missing dependencies that are needed to
build open-lldp from source. This patch updates the
QUICKSTART document with the new requirements.

Signed-off-by: Robert Love <robert.w.love@intel.com>

QUICKSTART

@@ -83,14 +83,17 @@ git://open-fcoe.org/fcoe-utils.git
 DEPENDENCIES
 
 * libnl
+* libnl-devel
 * libconfig
+* libconfig-devel
 * autoconf
 * autotools
 * sysconftool
 * automake
 * libtool
 * gcc-c++
 * flex
+* readline-devel
 
 PROCESS