compress: adjust HAVE_LZ4_COMPRESS_DEFAULT macro for new name
compress: adjust HAVE_LZ4_COMPRESS_DEFAULT macro for new name

Seastar changed the name of this macro.

scylladb/scylla,duarten/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,scylladb/scylla,duarten/scylla,scylladb/scylla,avikivity/scylla,avikivity/scylla