crypto: ccp - Silence strncpy warning

This patch kills an strncpy by using strscpy instead.  The name
would be silently truncated if it is too long.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: John Allen <john.allen@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>