coccinelle: of_table: handle SPI device ID tables

'struct spi_device_id' tables also need to be NULL terminated.

Link: https://lkml.kernel.org/r/20250911193354.56262-2-krzysztof.kozlowski@linaro.org


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Julia Lawall <julia.lawall@inria.fr>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>