Input: drv260x - fix unbalanced regulator_disable() call

Input: drv260x - fix unbalanced regulator_disable() call

The driver acquires the 'vbat' regulator during probing but never enables
it. Consequently, in the suspend method, the driver disables the regulator
without enabling it first, causing an 'Unbalanced regulator_disable()'
error.

Enable the regulator in the probe() method and add the remove() method with
regulator disabling to fix this.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Link: https://patch.msgid.link/20260215141435.727872-5-jekhor@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>