PRD: fix input parameters for lane repair power down HWPs

Change-Id: I919bed6c0c9ce79d16783bad47776224ecc3de13
CQ: SW440211
Backport: release-fips910
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/65316
Reviewed-by: Caleb N. Palmer <cnpalmer@us.ibm.com>
Reviewed-by: Benjamin J. Weisenbeck <bweisenb@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Nicholas E. Bofferding <bofferdn@us.ibm.com>
Reviewed-by: Zane C. Shelley <zshelle@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/65324
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/65411
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>

src/usr/diag/prdf/common/plat/prdfPlatServices_common.C

@@ -161,8 +161,8 @@ int32_t powerDownLanesXbus(TargetHandle_t i_rxBusTgt,
                     p9_io_xbus_pdwn_lanes,
                     fapiTrgt,
                     i_clkGrp,
-                    i_txFailLanes,
-                    i_rxFailLanes);
+                    i_rxFailLanes,
+                    i_txFailLanes);
 
     if(nullptr != err)
     {