soc: qcom: pbs: fix device leak on lookup

soc: qcom: pbs: fix device leak on lookup

Make sure to drop the reference taken to the pbs platform device when
looking up its driver data.

Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.

Fixes: 5b2dd77be1d8 ("soc: qcom: add QCOM PBS driver")
Cc: stable@vger.kernel.org	# 6.9
Cc: Anjelique Melendez <quic_amelende@quicinc.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20250926143511.6715-3-johan@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>