ALSA: hda/tegra: Disable sync-write operation

Commit f34a4c9d ("ALSA: hda: Enable sync-write operation as default
for all controllers") enabled sync-write for all controllers and this is
causing audio playback on the Tegra186 HDA device to fail. For now,
disable sync-write support for Tegra to fix this.

Fixes: f34a4c9d

 ("ALSA: hda: Enable sync-write operation as default for all controllers")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200714160841.2293-1-jonathanh@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>