arm: add missing newlines to printk()s

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/arch/arm/platforms/brcm.c
+++ b/xen/arch/arm/platforms/brcm.c
@@ -162,7 +162,7 @@ static int brcm_cpu_power_on(int cpu)
 
     if ( timeout == 0 )
     {
-        dprintk(XENLOG_ERR, "CPU%d power enable failed", cpu);
+        dprintk(XENLOG_ERR, "CPU%d power enable failed\n", cpu);
         return -ETIMEDOUT;
     }
 
--- a/xen/arch/arm/platforms/exynos5.c
+++ b/xen/arch/arm/platforms/exynos5.c
@@ -183,7 +183,7 @@ static int exynos5_cpu_power_up(void __i
 
         if ( timeout == 0 )
         {
-            dprintk(XENLOG_ERR, "CPU%d power enable failed", cpu);
+            dprintk(XENLOG_ERR, "CPU%d power enable failed\n", cpu);
             return -ETIMEDOUT;
         }
     }