dt-bindings: iio: drop unneeded quotes

Cleanup by removing unneeded quotes from refs and redundant blank lines.
No functional impact except adjusting to preferred coding style.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Rokosov <ddrokosov@sberdevices.ru> # memsensing
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> # sama5d2-adc
Reviewed-by: Puranjay Mohan <puranjay12@gmail.com> # tmp117
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> # ad7292
Link: https://lore.kernel.org/r/20230124081037.31013-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

dt-bindings: iio: adc: use spi-peripheral-props.yaml

Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema. This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

dt-bindings: iio: Drop Tomislav Denis

Emails to Tomislav Denis bounce ("550 5.1.1 User Unknown").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816125401.70317-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

bindings: iio: adc: Add documentation for ADS131E0x ADC driver

Add a device tree binding documentation for Texas Instruments
ADS131E0x ADC family driver.

Signed-off-by: Tomislav Denis <tomislav.denis@avl.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210202084107.3260-3-tomislav.denis@avl.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>