nfv: update meta_data.yaml to remove dl_hook

"src_files" replaces the
"cp -pr ${SRC}/nfv-* ${PKG_BUILD_ROOT}/" of dl_hook.

Test Plan:
Pass: successfully build test

Story: 2009101
Task: 43392

Signed-off-by: Yue Tao <yue.tao@windriver.com>
Change-Id: I7aaaba92f50bba2355a4e1766dac90eed745731b

nfv/debian/dl_hook

@@ -1,11 +0,0 @@
-#!/bin/bash
-set -x
-
-PKG_BUILD_NAME=$1
-PKG_BUILD_ROOT=$(realpath `pwd`/${PKG_BUILD_NAME})
-STX_BASE=$(realpath ${MY_REPO}/stx)
-SRC=$(realpath ${STX_BASE}/nfv/nfv)
-
-mkdir ${PKG_BUILD_NAME}
-pushd ${PKG_BUILD_NAME}
-cp -pr ${SRC}/nfv-* ${PKG_BUILD_ROOT}/

nfv/debian/meta_data.yaml

@@ -1,7 +1,15 @@
 ---
 debname: nfv
 debver: 1.0
-dl_hook: dl_hook
+src_path: null
+src_files:
+  - nfv-client
+  - nfv-common
+  - nfv-debug-tools
+  - nfv-plugins
+  - nfv-tests
+  - nfv-tools
+  - nfv-vim
 revision:
   dist: $STX_DIST
   PKG_GITREVCOUNT: true