spi: st-ssc4: add missed pm_runtime_disable

[ Upstream commit cd050abeba2a95fe5374eec28ad2244617bcbab6 ]

The driver forgets to call pm_runtime_disable in probe failure
and remove.
Add the missed calls to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191118024848.21645-1-hslester96@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>