[EKS-Fargate] [request]: Allow customers to configure INPUT section of fluentBit configmap

### Community Note

* Please vote on this issue by adding a 👍 [reaction](https://blog.github.com/2016-03-10-add-reactions-to-pull-requests-issues-and-comments/) to the original issue to help the community and maintainers prioritize this request
* Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
* If you are interested in working on this issue or have submitted a pull request, please leave a comment

**Tell us about your request**
Allow customers to configure INPUT section of fluentBit configmap, Currently INPUT is not supported but customers need to adjust values

**Which service(s) is this request for?**
This could be Fargate, EKS

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
If customer wants to configure values like Skip_Long_Lines, Mem_Buf_Limit there's no way.

[INPUT]
Name tail
Tag kubernetes.*
Exclude_Path /var/log/containers/fluent*.log
Path /var/log/containers/*.log
Parser docker
DB /var/log/flb_kube.db
Mem_Buf_Limit 10MB
Skip_Long_Lines On
Refresh_Interval 10
Buffer_Chunk_Size 1MB
Buffer_Max_Size 1MB

**Are you currently working around this issue?**
Moving back to EC2 is the only option at this moment. Input section is completely ignored.

**Additional context**
https://docs.aws.amazon.com/eks/latest/userguide/fargate-logging.html

**Attachments**
If you think you might have additional information that you'd like to include via an attachment, please do - we'll take a look. (Remember to remove any personally-identifiable information.)

Read the linked EKS Fargate logging documentation and compare its ConfigMap behavior with the requested Fluent Bit [INPUT] settings, including Mem_Buf_Limit and Skip_Long_Lines. Done means customers can configure the INPUT section instead of having it ignored, with the documented settings applied to Fargate logging.

Written by the indexing model from the issue text.