* bump qca-nss-dp and ssdk ssdk-shell to 12.1
* [qca-ssdk] delete 0008 patch as 12.1 version do not need this
* [ipq807x]: Add support for tplink-tl-er2260t(basic)
* remove unused parts in 2260t.dts
* NSS:bump nss-drv64 to 12.1r2 (may affect ipq806x)
* fix nss-dp source_url
* qca-ssdk: refresh ssdk patch
我只是执行者，有问题请找 “Redmi ax6 机友会”（522966467）里面的群主
和陈超（269806631）等狗管理和伪君子反馈。
I'm just an executor. If you have any questions, please contact the
group owner and Chen Chao (269806631) management and hypocrites in
the "Redmi ax6 Friends Club" (522966467) for feedback.
私はただの遺言執行者です。ご不明な点がございましたら、グループのオ
ーナーである Chen Chao（269806631）や、「Redmi ax6 Friends Club」
（522966467）の他のマネージャーや偽善者にお問い合わせください。
Unanimous approval from the entire development team.
Ref: https://t.me/chenchao_rip/4
Cc: lean <coolsnowwolf@gmail.com>
Cc: asushugo <429632952@163.com>
CC: CN_SZTL <cnsztl@immortalwrt.org>
Cc: AmadeusGhost <amadeus@immortalwrt.org>
