ARM: tegra: Enable position independent build for 64-bit

Note that U-Boot is always chainloaded from cboot starting with L4T
release 28. cboot always loads U-Boot to a fixed address, so making
the builds position independent isn't strictly necessary. However,
position independent builds can be convenient because if U-Boot is
ever loaded to an address different from its link address, it will
still be able to boot.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/configs/e2220-1170_defconfig b/configs/e2220-1170_defconfig
index 4d253c5..d650aca 100644
--- a/configs/e2220-1170_defconfig
+++ b/configs/e2220-1170_defconfig
@@ -1,6 +1,6 @@
 CONFIG_ARM=y
 CONFIG_TEGRA=y
-CONFIG_SYS_TEXT_BASE=0x80110000
+CONFIG_SYS_TEXT_BASE=0x80080000
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_TEGRA210=y
 CONFIG_OF_SYSTEM_SETUP=y