There are timing issues in the current
tunInterface_joinedNetwork_otAddressesAddedToTunInterface test that the
OT addresses (e.g. Leader ALOC) may be updated after the device
attaches while the test doesn't wait for the addresses being propagated
to the system_server.
This commit fixes this issue by waiting for the addresses check for 1
seconds before timing out.
Bug: 333078476
Change-Id: If672aab7535f200bd38b50f1ce691b7c32e4cc75
8f105009af