regulator: core: Propagate the regulator state in case of exclusive get

regulator: core: Propagate the regulator state in case of exclusive get

Previously, performing an exclusive get on an already-enabled regulator
resulted in inconsistent state initialization between child and parent
regulators. While the child's counts were updated, its parent's counters
remained unaffected.

Consequently, attempting to disable an already-enabled exclusive regulator
triggered unbalanced disables warnings from its parent regulator.

This commit addresses the issue by propagating the enable state to the
parent regulator using a regulator_enable call. This ensures consistent
state management across the regulator hierarchy, preventing warnings!

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://msgid.link/r/20240312091638.1266167-1-kory.maincent@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>