dt-bindings: dma: pl330: Document the quirk 'arm,pl330-periph-burst'

This patch Adds the quirk 'arm,pl330-periph-burst' for pl330.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1593439555-68130-4-git-send-email-sugar.zhang@rock-chips.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>