[chirp_devel] TS-480 Patch for #8297 and #8877

[Dan Smith]

> Patch fixes Split mode support for TS-480 (#8297) and 67.0 Htz PL download (#8877).
> I know, I am improperly submitting multiple bug-fixes in a combined patch, but I feel they should both be implemented in the next build.
> I am so ashamed...😭

Good. But, I'm going to let you slide because I didn't notice your question when you asked :)

I'm not sure why you included an image when we already have one. Is there something broken about the one in the tree? It seems to pass tests fine even with your patch applied. Unless there's something wrong with it (which would imply a compatibility break with users also), I'll just leave what we have in there now.

--Dan