regulator: max20086: Fix refcount leak in max20086_parse_regulators_dt()

regulator: max20086: Fix refcount leak in max20086_parse_regulators_dt()

[ Upstream commit 06118ae36855b7d3d22688298e74a766ccf0cb7a ]

There is a missing call to of_node_put() if devm_kcalloc() fails.
Fix this by changing the code to use cleanup.h magic to drop the
refcount.

Fixes: 6b0cd72757c6 ("regulator: max20086: fix invalid memory access")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aDVRLqgJWMxYU03G@stanley.mountain
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>