spi: spi-nxp-fspi: remove the goto in probe

Remove all the goto in probe to simplify the driver.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://patch.msgid.link/20250428-flexspipatch-v3-1-61d5e8f591bc@nxp.com


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