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/ddr/fsl/options.c b/drivers/ddr/fsl/options.c
index b917931..c000a45 100644
--- a/drivers/ddr/fsl/options.c
+++ b/drivers/ddr/fsl/options.c
@@ -8,6 +8,7 @@
 #include <env.h>
 #include <hwconfig.h>
 #include <fsl_ddr_sdram.h>
+#include <log.h>
 
 #include <fsl_ddr.h>
 #if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \