spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe

spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe

[ Upstream commit 3e23dec24c9555171d20d1e0b63dfcebfe1a1b51 ]

The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context.

Fixes:b4bc6f98378a0 ("spi/omap100k: Convert to runtime PM")

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220924121310.78331-4-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>