net: phy: Clean up includes of common.h

We want to be able to include some other system headers in phy.h but
that requires us to have included common.h in the top-level first.

Also, common.h includes config.h as the first thing it does, so don't
include it directly.

Series-to: u-boot
Series-cc: Grygorii Strashko <grygorii.strashko@ti.com>
Seried-cc: ti
Series-process-log: sort, uniq
Cover-letter:
Prepare for net: phy: prevent uclass_eth device "node" field overwriting
Prepare for [1] so that it doesn't break the build for a bunch of
boards. There are a number of reasons this series broke the build
but none of them depend on changes in the series, so fix up those
situations ahead of applying that series.

[1] https://patchwork.ozlabs.org/cover/940104/
END
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/net/phy/natsemi.c b/drivers/net/phy/natsemi.c
index 05c7e7c..efde457 100644
--- a/drivers/net/phy/natsemi.c
+++ b/drivers/net/phy/natsemi.c
@@ -5,6 +5,7 @@
  * Copyright 2010-2011 Freescale Semiconductor, Inc.
  * author Andy Fleming
  */
+#include <common.h>
 #include <phy.h>
 
 /* NatSemi DP83630 */