spi: stm32-ospi: Fix reset control leak on probe error

spi: stm32-ospi: Fix reset control leak on probe error

When spi_register_controller() fails after reset_control_acquire()
succeeds, the reset control is never released. This causes a resource
leak in the error path.

Add the missing reset_control_release() call in the error path.

Fixes: cf2c3eceb757 ("spi: stm32-ospi: Make usage of reset_control_acquire/release() API")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://patch.msgid.link/20260329-stm32-ospi-v1-1-142122466412@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>