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/api/api_display.c b/api/api_display.c
index 8ae358a..4f2cdd7 100644
--- a/api/api_display.c
+++ b/api/api_display.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <api_public.h>
 #include <lcd.h>
+#include <log.h>
 #include <video_font.h> /* Get font width and height */
 
 /* lcd.h needs BMP_LOGO_HEIGHT to calculate CONSOLE_ROWS */