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/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
index 77b932a..989690a 100644
--- a/drivers/ata/ahci_sunxi.c
+++ b/drivers/ata/ahci_sunxi.c
@@ -1,6 +1,7 @@
 #include <common.h>
 #include <ahci.h>
 #include <dm.h>
+#include <log.h>
 #include <scsi.h>
 #include <errno.h>
 #include <asm/io.h>