Increase rate upper limit to 192kHz to reflect the rate range actually
supported by the STM32 DFSDM peripheral.

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://patch.msgid.link/20241114102851.2497942-1-olivier.moysan@foss.st.com


Signed-off-by: Mark Brown <broonie@kernel.org>