drivers: dma: edma: eDMA loop SG mode support

Existing dynamic SG mode have some issues which cause uart sync api and
I2S speed test failed.

These issues are: a wrong "Done" bit issue found on UART async api
test. An invalid destination address issue found on I2S speed
test. By introducing loop SG mode, these issues are all fixed.

Some data structures are different between eDMA and eDMA V4, use
different macros defined in SDK driver for each of them.

Signed-off-by: Raymond Lei <raymond.lei@nxp.com>