OpenWrt wan setup

it is actually wan, so rename lan to wan

and add firewall rule for ssh connection

Test: adb shell tracepath example.com
Test: adb shell curl -v https://example.com

Bug: 191348818
Bug: 207732192
Bug: 208339539

Change-Id: I6ba568a960fa04451eaa2fbe5443a883f6367d67
1 file changed