spi: axiado: Fix double-free in ax_spi_probe()

spi: axiado: Fix double-free in ax_spi_probe()

ctlr is allocated using devm_spi_alloc_host(), which automatically
handles reference counting via the devm framework.

Calling spi_controller_put() manually in the probe error path is
redundant and results in a double-free.

Fixes: e75a6b00ad79 ("spi: axiado: Add driver for Axiado SPI DB controller")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Link: https://patch.msgid.link/20260302-axiado-v1-1-1132819f1cb7@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>