drivers/sx126x: Enable `SX126X_IRQ_SYNC_WORD_VALID` irq
drivers/sx126x: Enable `SX126X_IRQ_SYNC_WORD_VALID` irq

OlegHahm/RIOT,ant9000/RIOT,OlegHahm/RIOT,miri64/RIOT,RIOT-OS/RIOT,miri64/RIOT,ant9000/RIOT,OlegHahm/RIOT,OlegHahm/RIOT,kYc0o/RIOT,authmillenon/RIOT,jasonatran/RIOT,miri64/RIOT,kaspar030/RIOT,OTAkeys/RIOT,miri64/RIOT,jasonatran/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,jasonatran/RIOT,OTAkeys/RIOT,kaspar030/RIOT,ant9000/RIOT,kaspar030/RIOT,OTAkeys/RIOT,kYc0o/RIOT,authmillenon/RIOT,authmillenon/RIOT,OTAkeys/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,authmillenon/RIOT,ant9000/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,kaspar030/RIOT,ant9000/RIOT,OlegHahm/RIOT,miri64/RIOT,kYc0o/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,authmillenon/RIOT