crypto: ccp - Make ccp_dev_suspend and ccp_dev_resume void functions

Since ccp_dev_suspend() and ccp_dev_resume() only return 0 which causes
ret to equal 0 in sp_suspend and sp_resume, making the if condition
impossible to use. it might be a more appropriate fix to have these be
void functions and eliminate the if condition in sp_suspend() and
sp_resume().

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: John Allen <john.allen@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>