erofs-utils: bump up EROFS_CONFIG_COMPR_MAX_SZ

Otherwise, compression ratios could be limited when
pcluster size is large. Use a static variable for now.

Link: https://lore.kernel.org/r/20220612164518.503836-1-xiang@kernel.org
Signed-off-by: Gao Xiang <xiang@kernel.org>
2 files changed