ASoC: Intel: avs: Replace devm_kzalloc() with devm_kcalloc()

ASoC: Intel: avs: Replace devm_kzalloc() with devm_kcalloc()

Open coded arithmetic in allocator arguments is discouraged [1]. Helper
functions like kcalloc or, in this case, devm_kcalloc are preferred.

[1]: https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments

Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250317-sound-avs-kcalloc-v2-1-20e2a132b18f@ethancedwards.com
Signed-off-by: Mark Brown <broonie@kernel.org>