9697 Add digest tests to crypto test framework

*** 9,20 ****
  # http://www.illumos.org/license/CDDL.
  #
  
  #
  # Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
  #
  
! SUBDIRS = modes common
  
  modes: common
  
  include $(SRC)/test/Makefile.com
--- 9,22 ----
  # http://www.illumos.org/license/CDDL.
  #
  
  #
  # Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
+ # Copyright 2018, Joyent, Inc.
  #
  
! SUBDIRS = modes common digest
  
  modes: common
+ digest: common
  
  include $(SRC)/test/Makefile.com