Refinements to: Hardware abstraction for ECC, RND and encrypted storage

Refinements to: Hardware abstraction for ECC, RND and encrypted storage

Change-Id: I01aaebe96588314e6aebf1f8adcc20ede8d0d6d4
Signed-off-by: Steve Clark <steve.clark@atmel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2801
Reviewed-by: Woochul Shim <woochul.shim@samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Sachin Agrawal <sachin.agrawal@intel.com>
(cherry picked from commit 4940a9dc23a0a6a2123c727a51128d0f935fe35b)
Reviewed-on: https://gerrit.iotivity.org/gerrit/3437
(cherry picked from commit bc96b99b612774141edc9d5bffc225370453127c)
Reviewed-on: https://gerrit.iotivity.org/gerrit/3445