ARM: tegra: Enable PCIe on Beaver

The Beaver has an ethernet NIC connected to the PCIe bus. Enable the
PCIe controller and the network device driver so that the device can
boot over the network.

In addition the board has a mini-PCIe expansion slot.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/include/configs/beaver.h b/include/configs/beaver.h
index 5d765f3..5df460c 100644
--- a/include/configs/beaver.h
+++ b/include/configs/beaver.h
@@ -76,6 +76,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP