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/x86/lib/i8259.c b/arch/x86/lib/i8259.c
index 358cd1e..a0e3c09 100644
--- a/arch/x86/lib/i8259.c
+++ b/arch/x86/lib/i8259.c
@@ -14,6 +14,7 @@
  */
 
 #include <common.h>
+#include <log.h>
 #include <asm/io.h>
 #include <asm/i8259.h>
 #include <asm/ibmpc.h>