ALSA: memalloc: Fix dma_need_sync() checks

dma_need_sync() checks each DMA address.  Fix the incorrect usages
for non-contiguous and non-coherent page allocations.
Fortunately, there are no actual call sites that need manual syncs
yet.

Fixes: a25684a9 ("ALSA: memalloc: Support for non-contiguous page allocation")
Fixes: 73325f60

 ("ALSA: memalloc: Support for non-coherent page allocation")
Cc: <stable@vger.kernel.org>
Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Link: https://lore.kernel.org/r/20220210123344.8756-2-tiwai@suse.de


Signed-off-by: Takashi Iwai <tiwai@suse.de>