change platform check

scripts/device_qc_report.py

@@ -96,10 +96,10 @@ def perform_calculations(curdir, path_delim, report_file):
 if __name__ == "__main__":
     rootdir = os.getcwd()
     path_delim = ''
-    if platform.system() == 'Darwin':
-        path_delim = '/'
-    else:
+    if platform.system() == 'Windows':
         path_delim = '\\'
+    else:
+        path_delim = '/'
     report_file = rootdir + path_delim + 'report.xlsx'
     print(report_file)