wandboard: Add support for the latest revd1 revision

Latest wandboard hardware revision is revd1, which brings the following
new features:

- PFUZE100 PMIC
- AR8035 Ethernet PHY
- Upgrade Wifi/BT chip to BCM4339/BCM43430.

The detection mechanism is to probe the PMIC and when it is
found, then the revision of the board is revd1.

As the detection is done via PMIC, we need to print the board version
at a later stage via CONFIG_DISPLAY_BOARDINFO_LATE and also need
to disable CONFIG_DISPLAY_BOARDINFO, which is done much earlier.

Make the necessary adjustments for the AR8035 PHY to work on revd1.

Based on Richard Hu's work from Technexion's U-Boot tree.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/configs/wandboard_defconfig b/configs/wandboard_defconfig
index 72ff721..e12f870 100644
--- a/configs/wandboard_defconfig
+++ b/configs/wandboard_defconfig
@@ -15,6 +15,7 @@
 # CONFIG_CONSOLE_MUX is not set
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+# CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_SPL=y
 CONFIG_SPL_EXT_SUPPORT=y