This adds the same line (uses CONFIG_PRECOMPRESSED_PAYLOAD) to every Options.lb file that already had a "uses CONFIG_COMPRESSED_PAYLOAD_LZMA" line in it.
If I understood correctly there should be a corresponding default CONFIG_PRECOMPRESSED_PAYLOAD x
line in the target/ Options.lb files.
None of the architectures have a default CONFIG_PRECOMPRESSED_PAYLOAD.
Since "uses CONFIG_PRECOMPRESSED_PAYLOAD" allows you to use the option, but doesn't force it, I don't think you need the default line. It might be better style. There are a lot of CONFIG_... options that don't have defaults in the Options.lb files, though.
Myles