spi: stm32-ospi: clean up on error in probe()

If reset_control_acquire() fails, then we can't return directly.
We need to do a little clean up first.

Fixes: cf2c3ece ("spi: stm32-ospi: Make usage of reset_control_acquire/release() API")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aEmAGTUzzKZlLe3K@stanley.mountain


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