MLK-19742: dma: apbh-dma: switch from dma_coherent to dma_pool

Switch from dma_coherent API to dma_pool API for APBH dma driver.

Got the following warnings with the previous dma_alloc_coherent,

alloc_contig_range: [xxx, yyy) PFNs busy

This implementation create one dma_pool dedicate for all following
dma_alloc and avoid keeping allocate available memories.

Signed-off-by: Han Xu <han.xu@nxp.com>
(cherry picked from commit fb65f7c3050346ddc680a75d4162648175438c5e)
Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
Signed-off-by: Srikanth Krishnakar <Srikanth_Krishnakar@mentor.com>