ALSA: atiixp: Allocate resources with device-managed APIs

Like the previous patch, this patch converts the resource allocations
with device-managed API calls, so that we can reduce resource-free
calls.

The atiixp drivers are simpler than intel8x0, and even the irq can be
allocated with devres.

The end result is a good amount of code reduction.

Link: https://lore.kernel.org/r/20210715075941.23332-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>