drivers/iio/adc/ad9361: Fix TDD mode with Dual Synth Mode

When using FDD tables also calibrate the CP for FDD mode operation

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/ad9361: ad9361_set_ensm_mode() fix logic in TDD mode

When not in pin control mode and not in dual synth mode and enable TXNRX
SPI control.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/ad9361: Sanity check for TDD options

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
drivers/iio/adc/ad9361: Fix digital tune in TDD mode

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>