ARM: tegra: enable PCIe controller on p2771-0000

p2771-0000 has a couple of PCIe ports; one physically x4 desktop PCI
connector (which may run at x2 electrically, depending on the board
version and configuration) and a x1 connection to the M.2 slot (which may
not be active, depending on the board version and configuration). This
change enables those.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/configs/p2771-0000-b00_defconfig b/configs/p2771-0000-b00_defconfig
index ad35c99..27393f3 100644
--- a/configs/p2771-0000-b00_defconfig
+++ b/configs/p2771-0000-b00_defconfig
@@ -26,7 +26,12 @@
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
+CONFIG_RTL8169=y
+CONFIG_E1000=y
+CONFIG_PCI_TEGRA=y
 CONFIG_TEGRA186_BPMP_I2C=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_TEGRA186_POWER_DOMAIN=y