Add missing newline in IOMMU error message

Signed-off-by: Andi Kleen <ak@suse.de>

Index: linux/arch/x86_64/kernel/pci-gart.c
===================================================================
--- linux.orig/arch/x86_64/kernel/pci-gart.c
+++ linux/arch/x86_64/kernel/pci-gart.c
@@ -772,7 +772,7 @@ static __init int init_k8_gatt(struct ag
  nommu:
  	/* Should not happen anymore */
 	printk(KERN_ERR "PCI-DMA: More than 4GB of RAM and no IOMMU\n"
-	       KERN_ERR "PCI-DMA: 32bit PCI IO may malfunction."); 
+	       KERN_ERR "PCI-DMA: 32bit PCI IO may malfunction.\n");
 	return -1; 
 }