Since this API is used externally,
moved it to the cautil header instead of the security header.
https://github.sec.samsung.net/RS7-IOTIVITY/IoTivity/pull/577
(cherry-picked from
991775c94943140fd72ee564f142aee55df058ac)
Change-Id: I5d3221dcdb69d720fbd77bcbda878c2b20cba9dc
Signed-off-by: Jaehong Jo <jaehong.jo@samsung.com>
Signed-off-by: DoHyun Pyun <dh79.pyun@samsung.com>