ARM: tegra: fdt: Add 'non-removable' property to all eMMC nodes

During debug of the DM_MMC changes to the Tegra MMC driver, I
noticed that the 'removable' property wasn't being set correctly
for the eMMC parts on most Tegra boards. Since the kernel DTS has
this property set correctly, it should be in U-Boot's Tegra DT too.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/tegra20-whistler.dts b/arch/arm/dts/tegra20-whistler.dts
index 358c582..d4577c9 100644
--- a/arch/arm/dts/tegra20-whistler.dts
+++ b/arch/arm/dts/tegra20-whistler.dts
@@ -58,6 +58,7 @@
 	sdhci@c8000600 {
 		status = "okay";
 		bus-width = <8>;
+		non-removable;
 	};
 
 	clocks {