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/stm32/stm32_ltdc.c b/drivers/video/stm32/stm32_ltdc.c
index be7e9bf..ff48fd7 100644
--- a/drivers/video/stm32/stm32_ltdc.c
+++ b/drivers/video/stm32/stm32_ltdc.c
@@ -9,6 +9,7 @@
 #include <clk.h>
 #include <display.h>
 #include <dm.h>
+#include <log.h>
 #include <panel.h>
 #include <reset.h>
 #include <video.h>