spi: orion: Remove unused pointer in orion_spi_write_read()

Remove unused devdata pointer 'orion_spi' in function orion_spi_write_read().

Detected by Coverity: CID 1077860.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Mark Brown <broonie@linaro.org>
1 file changed