Changing ONL Image URL

Change-Id: Ie9d78e1aedf26e9910c2285fb1f345fab24f5450
diff --git a/roles/maas/defaults/main.yml b/roles/maas/defaults/main.yml
index 5f2d2ea..53de249 100644
--- a/roles/maas/defaults/main.yml
+++ b/roles/maas/defaults/main.yml
@@ -13,9 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-accton_as5712_54x: 'https://www.dropbox.com/s/pl3cvr9olnaufw5/ONL-2.0.0_ONL-OS_2017-01-04.0024-8d23df5_AMD64_INSTALLED_INSTALLER'
-accton_as5812_54x: 'https://www.dropbox.com/s/pl3cvr9olnaufw5/ONL-2.0.0_ONL-OS_2017-01-04.0024-8d23df5_AMD64_INSTALLED_INSTALLER'
-accton_as6712_32x: 'https://www.dropbox.com/s/pl3cvr9olnaufw5/ONL-2.0.0_ONL-OS_2017-01-04.0024-8d23df5_AMD64_INSTALLED_INSTALLER'
+accton_as5712_54x: 'https://github.com/opencord/OpenNetworkLinux/releases/download/2017-01-04.0024-8d23df5/ONL-2.0.0_ONL-OS_2017-01-04.0024-8d23df5_AMD64_INSTALLED_INSTALLER'
+accton_as5812_54x: 'https://github.com/opencord/OpenNetworkLinux/releases/download/2017-01-04.0024-8d23df5/ONL-2.0.0_ONL-OS_2017-01-04.0024-8d23df5_AMD64_INSTALLED_INSTALLER'
+accton_as6712_32x: 'https://github.com/opencord/OpenNetworkLinux/releases/download/2017-01-04.0024-8d23df5/ONL-2.0.0_ONL-OS_2017-01-04.0024-8d23df5_AMD64_INSTALLED_INSTALLER'
 
 pub_ssh_key_file_location: "{{ pub_ssh_key_location | default ('/etc/maas/.ssh') }}"