force other devs to update for

fix https://github.com/meshtastic/Meshtastic-esp32/issues/76

platformio.ini

@@ -60,7 +60,7 @@ debug_tool = jlink
 debug_init_break = tbreak setup
 
 lib_deps =
-  https://github.com/meshtastic/RadioHead.git
+  https://github.com/meshtastic/RadioHead.git#a87518beacfff53bc2eec5ae33c607713e9596e6
   https://github.com/meshtastic/esp8266-oled-ssd1306.git ; ESP8266_SSD1306 
   AXP202X_Library
   SPI