fm: add support for FMStats for cherokee

Add support for FMStats app for cherokee platform.

Change-Id: Ia63a69697554ebc28a22e86d450fade6b4427a67
diff --git a/helium/radio-helium-commands.h b/helium/radio-helium-commands.h
index f76b7d2..3c9bbdc 100644
--- a/helium/radio-helium-commands.h
+++ b/helium/radio-helium-commands.h
@@ -109,6 +109,7 @@
     HCI_FM_HELIUM_UPPER_BAND,
     HCI_FM_HELIUM_LOWER_BAND,
     HCI_FM_HELIUM_AUDIO_MODE,
+    HCI_FM_HELIUM_RMSSI,
     HCI_FM_HELIUM_AUDIO_MUTE,
 };
 #endif /* __RADIO_CHEROKEE_COMMANDS_H */