regulator: add missing description for set_over_current_protection

Over current protection is missing descriptions for documentation.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/linux/regulator/driver.h

@@ -93,6 +93,9 @@ struct regulator_linear_range {
  * @get_current_limit: Get the configured limit for a current-limited regulator.
  * @set_input_current_limit: Configure an input limit.
  *
+ * @set_over_current_protection: Support capability of automatically shutting
+ *                               down when detecting an over current event.
+ *
  * @set_active_discharge: Set active discharge enable/disable of regulators.
  *
  * @set_mode: Set the configured operating mode for the regulator.

include/linux/regulator/machine.h

@@ -97,6 +97,7 @@ struct regulator_state {
  * @ramp_disable: Disable ramp delay when initialising or when setting voltage.
  * @soft_start: Enable soft start so that voltage ramps slowly.
  * @pull_down: Enable pull down when regulator is disabled.
+ * @over_current_protection: Auto disable on over current event.
  *
  * @input_uV: Input voltage for regulator when supplied by another regulator.
  *