staging/rdma/hfi1: Skip lcb init for simulation

The simulator does not correctly handle LCB cclk loopback.
Skip that step for simulation - it is not needed.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/staging/rdma/hfi1/chip.c

@@ -9315,6 +9315,10 @@ static void init_qsfp_int(struct hfi1_devdata *dd)
  */
 static void init_lcb(struct hfi1_devdata *dd)
 {
+	/* simulator does not correctly handle LCB cclk loopback, skip */
+	if (dd->icode == ICODE_FUNCTIONAL_SIMULATOR)
+		return;
+
 	/* the DC has been reset earlier in the driver load */
 
 	/* set LCB for cclk loopback on the port */