archivers/lzma: update to 26.0.0

• assume maintainership
• enable assembly use
  • for x86, assemble with new port jwasm
  • I ported asmc for this purpose originally, but the assembler crashes on i386, while jwasm is fine (no AES needed for lzma, so asmc doesn't confer a benefit over jwasm in any case)
• remove WITH_LZMA_PROB32 and WITH_LZMA_SIZE_OPT. Reading the code, there seems to be confusion over what the corresponding CFLAGS are called between C and assembly code.
• remove now obsolete patches

Changelog: https://www.7-zip.org/sdk.html