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/drivers/sound/rockchip_sound.c b/drivers/sound/rockchip_sound.c
index a092dbc..94058e6 100644
--- a/drivers/sound/rockchip_sound.c
+++ b/drivers/sound/rockchip_sound.c
@@ -11,6 +11,7 @@
 #include <clk.h>
 #include <dm.h>
 #include <i2s.h>
+#include <log.h>
 #include <misc.h>
 #include <sound.h>
 #include <asm/arch-rockchip/periph.h>