[media] V4L/videobuf2-memops: use pr_debug for debug messages

Otherwise they clutter the dmesg buffer even on a production kernel.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/videobuf2-memops.c

@@ -177,7 +177,7 @@ int vb2_mmap_pfn_range(struct vm_area_struct *vma, unsigned long paddr,
 
 	vma->vm_ops->open(vma);
 
-	printk(KERN_DEBUG "%s: mapped paddr 0x%08lx at 0x%08lx, size %ld\n",
+	pr_debug("%s: mapped paddr 0x%08lx at 0x%08lx, size %ld\n",
 			__func__, paddr, vma->vm_start, size);
 
 	return 0;
@@ -195,7 +195,7 @@ static void vb2_common_vm_open(struct vm_area_struct *vma)
 {
 	struct vb2_vmarea_handler *h = vma->vm_private_data;
 
-	printk(KERN_DEBUG "%s: %p, refcount: %d, vma: %08lx-%08lx\n",
+	pr_debug("%s: %p, refcount: %d, vma: %08lx-%08lx\n",
 	       __func__, h, atomic_read(h->refcount), vma->vm_start,
 	       vma->vm_end);
 
@@ -213,7 +213,7 @@ static void vb2_common_vm_close(struct vm_area_struct *vma)
 {
 	struct vb2_vmarea_handler *h = vma->vm_private_data;
 
-	printk(KERN_DEBUG "%s: %p, refcount: %d, vma: %08lx-%08lx\n",
+	pr_debug("%s: %p, refcount: %d, vma: %08lx-%08lx\n",
 	       __func__, h, atomic_read(h->refcount), vma->vm_start,
 	       vma->vm_end);