COB-121: Fix exit status for tSubbandProcPerformance_compare.py

RTCP/Cobalt/GPUProc/test/SubbandProcs/tSubbandProcPerformance_compare.py

@@ -126,5 +126,7 @@ else:
     print(" none")
 
 # Determine exit status and exit
-status = len(failed) > 0 or len(missing) > 0
-exit(status)
+if (len(failed) > 0 or len(missing) > 0):
+    exit(1)
\ No newline at end of file
+else:
+    exit(0)
\ No newline at end of file