regulator: qcom_smd: correct MP5496 ranges

regulator: qcom_smd: correct MP5496 ranges

Currently set MP5496 Buck and LDO ranges dont match its datasheet[1].
According to the datasheet:
Buck range is 0.6-2.1875V with a 12.5mV step
LDO range is 0.8-3.975V with a 25mV step.

So, correct the ranges according to the datasheet[1].

[1] https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP5496GR/document_id/6906/

Signed-off-by: Robert Marko <robimarko@gmail.com>
Link: https://lore.kernel.org/r/20220604193300.125758-2-robimarko@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>