Use 2 threads by default in ITS tracker and ITS-TPC matcher in async mode

Author: shahor02

DATA/production/workflow-multiplicities.sh

@@ -13,8 +13,13 @@ SOURCE_GUARD_MULTIPLICITIES=1
 
 : ${SVERTEX_THREADS:=2}
 
+if [[ $SYNCMODE == 1 ]]; then
 : ${ITSTRK_THREADS:=1}
 : ${ITSTPC_THREADS:=1}
+else
+: ${ITSTRK_THREADS:=2}
+: ${ITSTPC_THREADS:=2}
+fi
 
 : ${TPCTIMESERIES_THREADS:=1}