Add dhcp-6.8.2 to manifest

Add the newly created dhcp-6.8.2 to the manifest.

Bug: 22956197
TEST: repo sync and verify that external/dhcp-6.8.2/ is created.
Change-Id: I3829928643d38f132def415f75f42469fd2183b7
1 file changed
tree: 0e09a6fcedac4f441b25b3d20b5576699ce12d8e
  1. default.xml