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/board/compal/paz00/paz00.c b/board/compal/paz00/paz00.c
index a7a1be3..64d0860 100644
--- a/board/compal/paz00/paz00.c
+++ b/board/compal/paz00/paz00.c
@@ -7,6 +7,7 @@
  */
 
 #include <common.h>
+#include <log.h>
 #include <asm/io.h>
 #include <asm/arch/tegra.h>
 #include <asm/arch/pinmux.h>