spi: cadence-quadspi: fix runtime pm disable imbalance on probe failure

spi: cadence-quadspi: fix runtime pm disable imbalance on probe failure

A recent attempt to fix the probe error handling introduced a runtime PM
disable depth imbalance by incorrectly disabling runtime PM on early
failures (e.g. probe deferral).

Fixes: f18c8cfa4f1a ("spi: cadence-qspi: Fix probe error path and remove")
Cc: stable@vger.kernel.org	# 7.0
Cc: Miquel Raynal (Schneider Electric) <miquel.raynal@bootlin.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260421125354.1534871-2-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>