Initial test with ext radio API
Stub for ext radio API for CC2420
Stub for ext radio API for CC2520
Ext radio API for STM32W
Stub for ext radio API for nullradio
Stub for ext radio API for rf230
Stub for ext radio API for cc2430
Stub for ext radio API for cc2538
Stub for ext radio API for cc253x
Stub for ext radio API for mc1322x
Stub for ext radio API for rl78
Stub for ext radio API for Cooja
Stub for ext radio API for seedeye