ASoC: Intel: avs: Lower UNLOAD_MULTIPLE_MODULES IPC timeout

Module unloading operation performs memory unmapping and the weight of
the opration does not different from any other standard IPC. There is no
dependency on secondary task like in module loading scenario where
larger message timeout is recommended.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220707124153.1858249-12-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>