spi: tegra210-quad: Remove redundant pm_runtime_mark_last_busy() calls

spi: tegra210-quad: Remove redundant pm_runtime_mark_last_busy() calls

pm_runtime_put_autosuspend() already internally updates the last_busy
timestamp before scheduling the autosuspend, making explicit
pm_runtime_mark_last_busy() calls immediately before it redundant.

Fixes: 7c12f6ead467 ("spi: tegra210-quad: Add runtime autosuspend support")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20260307-quad-v1-1-f103515db501@gmail.com