Error in RAIL_LBT_CONFIG_ETSI_EN_300_220_1_V3_1_0

There is a typo in RAIL_LBT_CONFIG_ETSI_EN_300_220_1_V3_1_0:
.lbtDuragion -> .lbtDuration
[https://github.com/SiliconLabs/simplicity_sdk/blob/da661283f301b53eec04d1016009e60bc7e34a1f/platform/radio/rail_lib/common/rail_types.h#L3573](https://github.com/SiliconLabs/simplicity_sdk/blob/da661283f301b53eec04d1016009e60bc7e34a1f/platform/radio/rail_lib/common/rail_types.h#L3573)