crypto-openssl: chacha support in openssl version
crypto-openssl: chacha support in openssl version

Fix build errors related to chachapoly when the
system openssl version is < 0x10100000.

Type: fix

Signed-off-by: Ray Kinsella <64a50932049ddff830412e0fd9edb30198bf17f3@ashroe.eu>
Change-Id: I62283fcc44c952ddd4d6a9f621c18e8be1af8af1

chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp