Disable DQS polarity workaround.

Workaround is currently disabled, we will need to remove it completely
if the lab decides this is the permanent fix.

Change-Id: I6c93c3609df9bfcbc0fd48948c392bb805eaea4b
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/35404
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: BRIANA E. FOXWORTH <befoxwor@us.ibm.com>
Reviewed-by: JACOB L. HARVEY <jlharvey@us.ibm.com>
Dev-Ready: JACOB L. HARVEY <jlharvey@us.ibm.com>
Reviewed-by: Brian R. Silver <bsilver@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/35421
Reviewed-by: Hostboot Team <hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/hwp/memory/lib/mss_attribute_accessors_manual.H

@@ -159,6 +159,9 @@ fapi_try_exit:
 template< fapi2::TargetType T >
 inline bool chip_ec_feature_mss_dqs_polarity(const fapi2::Target<T>& i_target)
 {
+    // Seeing better results with Monza and LaGrange by switching this off
+    // TODO RTC:168029 - Remove DQS polarity EC feature if turning it off is a permanent fix.
+#ifdef DO_POLARITY_WORKAROUND
     const auto l_chip = mss::find_target<fapi2::TARGET_TYPE_PROC_CHIP>(i_target);
     uint8_t l_value = 0;
 
@@ -170,6 +173,8 @@ fapi_try_exit:
     FAPI_ERR("failed accessing ATTR_CHIP_EC_FEATURE_MSS_DQS_POLARITY: 0x%lx (target: %s)",
              uint64_t(fapi2::current_err), mss::c_str(i_target));
     fapi2::Assert(false);
+#endif
+
     return false;
 }