dma: mv_xor: rename mv_xor_platform_data to mv_xor_channel_data

mv_xor_platform_data used to be the platform_data structure associated
to the 'mv_xor' driver. This driver no longer exists, and this data
structure really contains the properties of each XOR channel part of a
given XOR engine. Therefore 'struct mv_xor_channel_data' is a more
appropriate name.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index be3907b..c7926e4 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1300,7 +1300,7 @@
 
 	if (pdata && pdata->channels) {
 		for (i = 0; i < MV_XOR_MAX_CHANNELS; i++) {
-			struct mv_xor_platform_data *cd;
+			struct mv_xor_channel_data *cd;
 			int irq;
 
 			cd = &pdata->channels[i];