Minor IM protocol msg type doc comment correction (#19477)

diff --git a/src/protocols/interaction_model/Constants.h b/src/protocols/interaction_model/Constants.h
index 819099a..13bd048 100644
--- a/src/protocols/interaction_model/Constants.h
+++ b/src/protocols/interaction_model/Constants.h
@@ -50,7 +50,7 @@
 constexpr uint16_t kVersion = 0;
 
 /**
- * SecureChannel Protocol Message Types
+ * Interaction Model Protocol Message Types
  */
 enum class MsgType : uint8_t
 {