Update notes for submitted changes

* lib/lzo: Rename lzo1x_decompress.c to lzo1x_decompress_safe.c
Update notes for submitted changes

* lib/lzo: Update LZO compression to current upstream version
Update notes for submitted changes

* lib/lzo: huge LZO decompression speedup on ARM by using unaligned access
Update notes for submitted changes

* lzo: properly check for overruns