dmaengine: mv_xor: make the code 64 bits compliant

Fix two warnings which appear when building for 64 bits target:

drivers/dma/mv_xor.c: In function ‘mv_xor_prep_dma_xor’:
drivers/dma/mv_xor.c:480:3: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 6 has type ‘size_t {aka long unsigned int}’ [-Wformat=]
   "%s src_cnt: %d len: %u dest %pad flags: %ld\n",
   ^
drivers/dma/mv_xor.c: In function ‘mv_xor_probe’:
drivers/dma/mv_xor.c:1223:17: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    op_in_desc = (int)of_id->data;
                 ^

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/mv_xor.c

@@ -477,7 +477,7 @@ mv_xor_prep_dma_xor(struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src,
 	BUG_ON(len > MV_XOR_MAX_BYTE_COUNT);
 
 	dev_dbg(mv_chan_to_devp(mv_chan),
-		"%s src_cnt: %d len: %u dest %pad flags: %ld\n",
+		"%s src_cnt: %d len: %zu dest %pad flags: %ld\n",
 		__func__, src_cnt, len, &dest, flags);
 
 	sw_desc = mv_chan_alloc_slot(mv_chan);
@@ -1220,7 +1220,7 @@ static int mv_xor_probe(struct platform_device *pdev)
 			struct mv_xor_chan *chan;
 			dma_cap_mask_t cap_mask;
 			int irq;
-			op_in_desc = (int)of_id->data;
+			op_in_desc = (uintptr_t)of_id->data;
 
 			if (i >= max_channels)
 				continue;