Fix DHCP options sent by DHCP server

Add Android metered option, rebinding time option (T2), and match
current order of options.  Current DHCP server uses subnet_mask,
broadcast_address, router, name_server in this order.

Test: DhcpServerTest.py:test_discover_paramrequestlist passes
      atest FrameworksNetTests passes

Bug: b/109584964
Change-Id: I58f904d5fac306f704c16234fd69c2440fe0803d