Input: mtk-pmic-keys - add support for MT6359 PMIC keys

Add PMIC key support on MT6359 SoC.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Link: https://lore.kernel.org/r/20250703-add-mt6359-pmic-keys-support-v1-1-21a4d2774e34@collabora.com


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>