update `expand` antlr command

[YANG-DB]

Description

Due to the need to expose the latest P1 commands list of ppl antlr grammar - this PR includes the last missing geoip command.

It is added to the antlr files without any other tests or functionality for the single purpose of reflecting a complete set of grammar vocabulary parsing syntax.

Related Issues

910

Check List

• [ ] Updated documentation (docs/ppl-lang/README.md)
• [ ] Implemented unit tests
• [ ] Implemented tests for combination with other commands
• [ ] New added source code should include a copyright header
• [x] Commits are signed per the DCO using --signoff

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[LantaoJin]

This change seems has no relavant with expand. Am I missing something?

[qianheng-aws]

+1, the title mismatch with the change