Fixes from HB for GCC 8 Compiler

Fix compiler errors found when compiling HB with GCC 8.3.0

Change-Id: I1a8bc7f37e6b4c57d880c69acd73bd40e17676b7
RTC: 212930
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/83177
Reviewed-by: Nicholas E Bofferding <bofferdn@us.ibm.com>
Reviewed-by: Ilya Smirnov <ismirno@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Reviewed-by: Jennifer A Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/83197
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/import/chips/p9/procedures/hwp/nest/p9_fab_iovalid.C

@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* Contributors Listed Below - COPYRIGHT 2015                             */
+/* Contributors Listed Below - COPYRIGHT 2015,2019                        */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -998,7 +998,7 @@ fapi2::ReturnCode p9_fab_iovalid_get_link_delay(
 {
     FAPI_DBG("Start");
     fapi2::buffer<uint64_t> l_link_delay_reg;
-    uint32_t l_sublink_delay[2];
+    uint32_t l_sublink_delay[2] = {};
 
     // read link delay register, extract hi/lo delay values & return their average
     FAPI_TRY(fapi2::getScom(i_target, i_link_ctl.tl_link_delay_addr, l_link_delay_reg),