LVL1 WITH --PS-PROTOCOL

zstd compression depends on lots of factors optimizing compression speed
and compression ratio  at different compression levels. Certain variations
in data may cause zstd at a lower compression level to have more overhead than
uncompressed in terms of compression ratio. This is an internal working
of zstd. The patch just checks whether the data is compressed in comparsion to
the highest offered by zstd.

Change-Id: I93a5dc894a96bbd223105c8259d2bde806dc852e