Missing "val_tpl" on create discovery switch provided by RF

[Odyno]

Describe the bug
on Home Assistant the switch created by discovery process is present but the state is blocked

Environment:

• I have a Digoo Pir sersor that send messages to OMG
• OMG is built with '-DZgatewayRF="RF"' and '-DZmqttDiscovery="HADiscovery"' on development branch
• the board is esp32dev
• the message is received by OMG and sent to MQTT broker
• on Home Assistant the switch is present but the state is blocked

Expected behavior
Change the state to "on" in Home Assistant foreach revelation

Bug Analysis
The published message has the format "C" but the configuration provided by OMG (A) has no val_tpl field (B), so the pl_on can never match

[stale]

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