Embedded lzma decompression library becomes a module usable by other consumers, in addition to geom_uzip.
Most important code changes are
- removal of XZ_DEC_SINGLE define, we need the code to work with XZ_DEC_DYNALLOC
- xz_crc32_init() call is removed from geom_uzip, xz module handles initialization on its own.
xz is no longer embedded into geom_uzip, instead the depend line for the module is provided, and corresponding kernel option is added to each MIPS kernel config file using geom_uzip.
Sponsored by: Mellanox Technologies