ARM: tegra: rename colibri_t20 board/configuration/device-tree

In accordance with our other modules supported by U-Boot and as agreed
upon for Apalis/Colibri T30 get rid of the carrier board in the board/
configuration/device-tree naming.

While at it also bring the prompt more in line with our other products.

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/board/toradex/colibri_t20/MAINTAINERS b/board/toradex/colibri_t20/MAINTAINERS
new file mode 100644
index 0000000..b251c00
--- /dev/null
+++ b/board/toradex/colibri_t20/MAINTAINERS
@@ -0,0 +1,7 @@
+COLIBRI_T20
+M:	Lucas Stach <dev@lynxeye.de>
+S:	Maintained
+F:	board/toradex/colibri_t20/
+F:	include/configs/colibri_t20.h
+F:	configs/colibri_t20_defconfig
+F:	arch/arm/dts/tegra20-colibri.dtb