MT15/29: additional comments for dps missing from log

custom_components/tuya_local/devices/mustool_mt15mt29_airbox.yaml

@@ -136,7 +136,7 @@ entities:
         name: sensor
         unit: ppm
         class: measurement
-  # 103: bl_level enum["level_1", ???]
+  # 103: bl_level enum["level_1", ???] missing from log, maybe not implemented
   - entity: number
     name: CO2 alarm threshold
     category: config
@@ -181,7 +181,7 @@ entities:
         name: sensor
         unit: µg/m³
         class: measurement
-  # 108: secondcal int, unknown range or purpose
+  # 108: secondcal int, unknown range or purpose, missing from log
   # 109: clock1 int, unknown range or purpose
   # 110: clock2 int, unknown range or purpose
   # 111: clock3 int, unknown range or purpose