gen_merge_report.sh: Pass -w option to merge.sh

This allows to perform path translation and produce coverage reports with
clickable source files.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I5f50bc5a4bc97ea4f8a4020927f8dd248b0adfda
diff --git a/script/gen_merge_report.sh b/script/gen_merge_report.sh
index 61527b7..fed9256 100644
--- a/script/gen_merge_report.sh
+++ b/script/gen_merge_report.sh
@@ -160,7 +160,7 @@
         -j $MERGE_JSON -l ${OUTDIR} -p $project
     else
     bash $TEST_DEF_FOLDER/coverage-tool/coverage-reporting/merge.sh \
-        -j $MERGE_JSON -l ${OUTDIR}
+        -j $MERGE_JSON -l ${OUTDIR} -w $SHARE_FOLDER
     fi
 
     generate_bmcov_header ${OUTDIR}/index.html ${REPORT_HTML}