[openwrt] enable OTBR_NAT64 and INFRA_IF by default and add UCI config

[ihidchaos]

This commit enables OTBR_NAT64 and INFRA_IF by default, making NAT64 functionality available out-of-the-box on the OpenWrt platform.

At the same time, the RCP serial port configuration is added to the UCI configuration file to make the runtime modifications clearer and to avoid the errors that are easily caused by directly modifying the init.d configuration.

[ihidchaos]

The error that occurs should not be caused by this commit.

[ihidchaos]

The CI/CD passed automatically again without making changes. I guess we need to improve the number of concurrencies in CI/CI to make it a single step test?

In any case, can someone merge it in? @bukepo @xuyirio thanks.

[xuyirio]

LGTM.

One thing to note: querying an AIL NAT64 prefix is currently disabled for OpenWRT (PR).

[ihidchaos]

LGTM.

One thing to note: querying an AIL NAT64 prefix is currently disabled for OpenWRT (PR).

According to the description of openwrt/pull/11559, libanl is already included in the musl c library, so we can turn this option on.

Do I need to also submit a modification to CMakeLists.txt#L153 PR?

[xuyirio]

LGTM.
One thing to note: querying an AIL NAT64 prefix is currently disabled for OpenWRT (PR).

According to the description of openwrt/pull/11559, libanl is already included in the musl c library, so we can turn this option on.

Do I need to also submit a modification to CMakeLists.txt#L153 PR?

Good to know! Yes, please remove the NOT OT_TARGET_OPENWRT condition and verify the tests are passing.

[jwhui]

Thanks! 👍🏼