ASoC: Intel: avs: Enable AVS driver only on x86 platforms

ASoC: Intel: avs: Enable AVS driver only on x86 platforms

Only supported platform for AVS are x86 machines, so there is no reason
for it to be enabled on other architectures. Allow exception for compile
tests.

Fixes: 274d79e51875 ("ASoC: Intel: avs: Configure modules according to their type")
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20220425091646.545216-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>