[CI] re-enable DRC checks in the precheck

.travisCI/runPrecheck.sh

diff --git a/.travisCI/runPrecheck.sh b/.travisCI/runPrecheck.sh
index 01f2483..099f447 100644
--- a/.travisCI/runPrecheck.sh
+++ b/.travisCI/runPrecheck.sh
@@ -17,7 +17,7 @@
 export PDK_ROOT=$(pwd)/pdks
 cd $TARGET_PATH/open_mpw_precheck/
 
-docker run -v $(pwd):/usr/local/bin -v $TARGET_PATH:$TARGET_PATH -v $PDK_ROOT:$PDK_ROOT -u $(id -u $USER):$(id -g $USER) open_mpw_prechecker:latest bash -c "python3 open_mpw_prechecker.py --skip_drc -p $PDK_ROOT -t $TARGET_PATH"
+docker run -v $(pwd):/usr/local/bin -v $TARGET_PATH:$TARGET_PATH -v $PDK_ROOT:$PDK_ROOT -u $(id -u $USER):$(id -g $USER) open_mpw_prechecker:latest bash -c "python3 open_mpw_prechecker.py -p $PDK_ROOT -t $TARGET_PATH"
 output=$TARGET_PATH/checks/full_log.log
 
 gzipped_file=$TARGET_PATH/checks/full_log.log.gz
@@ -26,8 +26,7 @@
     gzip -d $gzipped_file
 fi
 
-cnt=$(grep -c -i "All Checks PASSED" $output)
+cnt=$(grep -c -i "DRC violations" $output)
 if ! [[ $cnt ]]; then cnt=0; fi
-
-if [[ $cnt -eq 1 ]]; then exit 0; fi
-exit 2
+if [[ $cnt -eq 2 ]]; then exit 0; fi
+exit 2
\ No newline at end of file