spi: tegra210-quad: Fix combined sequence

Return value should be updated to zero in combined sequence routine
if transfer is completed successfully. Currently it holds timeout value
resulting in errors.

Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/20221001122148.9158-1-kyarlagadda@nvidia.com


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