In order to provide access to locality registers, this commits adds
mapping of the head of the CRB registers, which are located right
before the control area.
Signed-off-by: NJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: NJerry Snitselaar <jsnitsel@redhat.com>
Tested-by: NGang Wei <gang.wei@intel.com>