dmaengine: ste_dma40: Fix up static memcpy event lines
dmaengine: ste_dma40: Fix up static memcpy event lines

The commit
"dmaengine: ste_dma40: Assign memcpy channels in the driver"
had two problems:
- It assigned magic numbers to the memcpy event lines
  instead of giving them symbolic names.
- It seems to have missed one of the memcpy event lines,
  number 51.

This patch fixes it up.

Acked-by: Lee Jones <630e34333487a351a857f6b705e04d30b37c1629@linaro.org>
Acked-by: Vinod Koul <5cf69c63beb17bf38d63aa0e923ee8256af0e205@intel.com>
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs