LZ4HC compression support

configname: CONFIG_F2FS_FS_LZ4HC

Linux Kernel Configuration
└─>File systems
└─>LZ4HC compression support
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Support LZ4HC compress algorithm, LZ4HC has compatible on-disk
layout with LZ4, if unsure, say Y.