[all] Issue 4 fixed (Mixer menu)

[sky9x / Taranis] Issue 1 fixed (PlayFile/Play were called from an interrupt). To be tested and re-tested
[all] FrSky alarms are not any more sent from the 10ms interrupt, but from the main loop. To be tested as well

src/telemetry_mavlink.cpp

@@ -607,7 +607,7 @@ void MAVLINK10mspoll(uint8_t count) {
 	}
 }
 
-void telemetryPoll10ms() {
+void telemetryWakeup() {
 	uint16_t tmr10ms = get_tmr10ms();
 	uint8_t count = tmr10ms & 0x0f; // 15*10ms
 	if (!count) {