Fix ccp_run_passthru_cmd dma variable assignments

[Dave Jones <davej@redhat.com>]

There are some suspicious looking lines of code in the new ccp driver, including
one that assigns a variable to itself, and another that overwrites a previous assignment.

This may have been a cut-and-paste error where 'src' was forgotten to be changed to 'dst'.
I have no hardware to test this, so this is untested.

Signed-off-by: Dave Jones <davej@fedoraproject.org>

diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 71ed3ade7e12..c266a7b154bb 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -1666,8 +1666,8 @@ static int ccp_run_passthru_cmd(struct ccp_cmd_queue *cmd_q,
 
 		op.dst.type = CCP_MEMTYPE_SYSTEM;
 		op.dst.u.dma.address = sg_dma_address(dst.sg_wa.sg);
-		op.src.u.dma.offset = dst.sg_wa.sg_used;
-		op.src.u.dma.length = op.src.u.dma.length;
+		op.dst.u.dma.offset = dst.sg_wa.sg_used;
+		op.dst.u.dma.length = op.src.u.dma.length;
 
 		ret = ccp_perform_passthru(&op);
 		if (ret) {