Renesas ARM Based SoC Shdma Updates for v3.17

* Add more register documentation and;
* Replace some hardcoded numbers by defines
dmaengine: shdma: Use defines instead of hardcoded numbers

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2 files changed