drivers: dma: ti: k3-psil: Add support for J721S2

Add support for J721S2 SOC.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20211119132315.15901-3-a-govindraju@ti.com


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