fix missing breaks in switch
fix missing breaks in switch

jdesbonnet/RFM69_LPC812_firmware,jdesbonnet/RFM69_LPC812_firmware,jdesbonnet/RFM69_LPC812_firmware,jdesbonnet/RFM69_LPC812_firmware,jdesbonnet/RFM69_LPC812_firmware,jdesbonnet/RFM69_LPC812_firmware