msm: eva: Add process name for debugging

Also fix a persistbuf optimization problem that failed
multi-loop DMM test.

Change-Id: Ib197077a708dea99967f0a9f4ed1c09d12023edc
Signed-off-by: George Shen <quic_sqiao@quicinc.com>

msm/eva/cvp_smem.c

@@ -104,8 +104,8 @@ static int msm_dma_get_device_address(struct dma_buf *dbuf, u32 align,
 
 		table = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
 		if (IS_ERR_OR_NULL(table)) {
+			dprintk(CVP_ERR, "Failed to map table %d\n", PTR_ERR(table));
 			rc = PTR_ERR(table) ?: -ENOMEM;
-			dprintk(CVP_ERR, "Failed to map table\n");
 			goto mem_map_table_failed;
 		}