fix: Warning on combpm_protocol_status

* bit0 or bit1 can be '1' (wrong useless frame case)

FofbTool.py

@@ -176,7 +176,7 @@ def set_attr_config_cellnode(cnp):
     c.description = "ComCellNode ethernet status. Expected value 0x00\n" +c.description
     c.format = '0x%X'
     c.unit = ' '
-    c.alarms.max_warning='1'
+    c.alarms.max_warning='4'
     cnp.set_attribute_config(c)
 
     c = cnp.get_attribute_config("combpm_sfp")