txw8301-openipc: add Taixin TXW8301 802.11ah HaLow Wi-Fi FMAC driver package

[csvke]

Adds a Buildroot package under general/package/txw8301-openipc with firmware blobs, default config, and init script. Also enables TXW8301 on gk7205v300_ultimate and ssc338q_ultimate.

TXW8301 FMAC firmware: https://github.com/TXW8301/TXW8301-FMAC-SDK
TXW8301 Linux Driver: https://github.com/TXW8301/TXW8301-FMAC-linux-driver

Tested on a XM IVG-G5F GK7205V300 camera board using it's J3 Extension ports for both SDIO and USB interfaces connecting with TAIXIN-AH-RX00P_EVB_V1.7

@cronyx @flyrouter @viktorxda

[flyrouter]

Good afternoon

Thank you very much for your interest in our project and your contribution.
Your PR will be reviewed shortly by our team.

A brief review of your files

Files that can be accepted into the Firmware repository immediately:

• general/package/Config.in
• general/package/txw8301-openipc/Config.in
• general/package/txw8301-openipc/files/S35txw8301
• general/package/txw8301-openipc/hgicf.conf.default
• general/package/txw8301-openipc/hgicf_sdio.bin
• general/package/txw8301-openipc/modprobe-txw8301.conf
• general/package/txw8301-openipc/txw8301-openipc.mk

Regarding the two files:

• br-ext-chip-goke/configs/gk7205v300_ultimate_defconfig
• br-ext-chip-sigmastar/configs/ssc338q_ultimate_defconfig

We would not like to include them in the current configuration of the Ultimate firmware for the following reasons:

1. It is possible that after some time the Ultimate firmware strategy itself will be changed or they may be abolished altogether.
2. If we accept your PR for these two files, any users who have installed the Ultimate firmware will have drivers inside that they may never need.

We suggest an alternative approach:

1. Remove these two files from your PR and it will be accepted immediately.
2. Please take a look at the Builder repository, and it might be more appropriate to create your two HaLow configurations there and maintain them under your guidance and management. We believe this is the right approach and will give you more freedom of action.

Please do not hesitate to comment on the suggestion.

Thank you for your contribution!