common: Drop log.h from common header

Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index fd3b408..b7a4556 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -10,6 +10,7 @@
 #include <fsl_ddr_sdram.h>
 #include <init.h>
 #include <hang.h>
+#include <log.h>
 #include <net.h>
 #include <vsprintf.h>
 #include <asm/cache.h>