Reviewed-by: dholmes, ecaspole, kvn

Reviewed-by: dholmes, alanbur

Summary: Using new sysconf and sysinfo API on Solaris 12, avoid using libpicl and libkstat.
Reviewed-by: kvn

Reviewed-by: iveresov

Summary: Add support for VM_Version::L1_data_cache_line_size().
Reviewed-by: dsimms, kvn, dholmes

Reviewed-by: sherman, jeff

Summary: Re-application of the change in JDK-8152271.
Reviewed-by: coleenp, sspitsyn