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/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index ad5ef93..042aa9a 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -7,6 +7,7 @@
  */
 
 #include <common.h>
+#include <log.h>
 #include <malloc.h>
 #include <fdtdec.h>
 #include <dm/devres.h>