v1.17

ic905/band and ic905/freq now report the OPERATING (transmit) VFO — what's on the air, or what would be if you keyed. In split this is the secondary VFO; otherwise the primary. ic905/band_b / ic905/freq_b now report the OTHER VFO (the displayed/RX VFO during a split TX). The band/freq fields in ic905/state follow the same convention.

Fixes a confusing case: during a split TX, ic905/freq used to publish the primary VFO's freq — i.e. the RX freq, not what was on the air. Now they match the transmit reality.

ic905/tx is unchanged (already correct — carries ON %).