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/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index 175866c..e172e36 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -9,6 +9,7 @@
 
 #include <common.h>
 #include <cpu_func.h>
+#include <log.h>
 #include <asm-generic/io.h>
 #include <dm.h>
 #include <dm/device-internal.h>