Key buffer length fix
Key buffer length fix

CA_SECURE_ENDPOINT_PUBLIC_KEY_MAX_LENGTH enlarged to
fix cloud client unability to connect to cloud.

Change-Id: Ic16c186c3e493aaca8f8a1817bbcc1a2b4f799c8
Signed-off-by: ol.beketov <8b8402ce463b3ba6094920b3493fffa206a8eaa1@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/19659
Reviewed-by: Andrii Shtompel <25499a78f7e7032392a327573ae90c1e2a94b983@samsung.com>
Reviewed-by: Kevin Kane <cd40c34e976f30c9e62efcf24e04c516bc3a3b05@microsoft.com>
Tested-by: jenkins-iotivity <d95b56ce41a2e1ac4cecdd398defd7414407cc08@iotivity.org>
Reviewed-by: Randeep Singh <46ce9385024397d3e4d9ed63be2e0a0d801e95b7@samsung.com>

iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity,rzr/iotivity,iotivity/iotivity,iotivity/iotivity,rzr/iotivity,iotivity/iotivity,rzr/iotivity