tree 7b75022ed7cc611ab4f9b7e65e4e9b397b954e8a
parent 7de1c49b7400cf46470c52408443619447ae327a
author Hungming Chen <nuccachen@google.com> 1640434682 +0800
committer Hungming Chen <nuccachen@google.com> 1642690213 +0800

[CLATJ#11] ClatCoordinator: config tun interface and bring up

Apply mtu and selected IPv4 address to tun interface.
Then, bring up the tun interface.

Bug: 212345928
Test: flash and boot
Run "atest ClatCoordinatorTest" in a followup commit.

Change-Id: I24a2a91e2b084be28820a7a63b265c5f56293334