Fix #1708, Align padding explicitly in cfe_tbl_msg.h

docs/src/mnem_maps/cfe_tbl_tlm_mnem_map

@@ -27,7 +27,7 @@ TBL_VALSUCCESSCTR=$sc_$cpu_TBL_ValSuccessCtr \
 TBL_VALFAILEDCTR=$sc_$cpu_TBL_ValFailedCtr \
 TBL_VALREQCTR=$sc_$cpu_TBL_ValReqCtr \
 TBL_NUMFREESHRBUF=$sc_$cpu_TBL_NumFreeShrBuf \
-TBL_BYTEALIGNPAD1=$sc_$cpu_TBL_ByteAlignPad1 \
+TBL_HKPADDING=$sc_$cpu_TBL_HkPadding \
 TBL_MEMPOOLHANDLE=$sc_$cpu_TBL_MemPoolHandle \
 TBL_LASTUPDTIME="$sc_$cpu_TBL_LastUpdTime, $sc_$cpu_TBL_SECONDS, $sc_$cpu_TBL_SUBSECONDS" \
 TBL_LASTUPDTBLNAME=$sc_$cpu_TBL_LastUpdTblName[CFE_TB_MAX_FULL_NAME_LEN] \
@@ -51,4 +51,4 @@ TBL_NAME=$sc_$cpu_TBL_Name[CFE_TB_MAX_FULL_NAME_LEN] \
 TBL_LASTFILEUPD=$sc_$cpu_TBL_LastFileUpd[OS_MAX_PATH_LEN] \
 TBL_OWNERAPP=$sc_$cpu_TBL_OwnerApp[OS_MAX_API_NAME] \
 TBL_CRITICAL=$sc_$cpu_TBL_Spare3 \
-TBL_SPARE4=$sc_$cpu_TBL_Spare4
+TBL_REGPADDING=$sc_$cpu_TBL_RegPadding