ASoC: stm32: spdifrx: Fix PM disable depth imbalance in stm32_spdifrx_probe

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. We fix it by moving
pm_runtime_enable to the endding of stm32_spdifrx_probe.

Fixes:ac5e3efd

 ("ASoC: stm32: spdifrx: add pm_runtime support")

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20220927142601.64266-3-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>