Re-add "decompressor: add LZ4 decompressor module""

This reverts commit 2927f30187630e67e758e4b9d2ace35866b99781.

Change-Id: Ia13f5377f3824fb6bbbd9ece32c0585651cca8c6
Merge "Re-add "decompressor: add LZ4 decompressor module""" into jb4.2