Revert "arm: Remove unregister MACH_TYPE_xxx uses"

This reverts commit 70b26cd057f42c7126088b49d4285955c8a00eae.

This is not a strict revert as it is easier to fix
board/atmark-techno/armadillo-800eva/armadillo-800eva.c to now the
correct name (same value) than to revert that change too.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/colibri_t20.h b/include/configs/colibri_t20.h
index 791a29b..0520283 100644
--- a/include/configs/colibri_t20.h
+++ b/include/configs/colibri_t20.h
@@ -19,6 +19,8 @@
 #define CONFIG_TEGRA_UARTA_SDIO1
 #define CONFIG_SYS_NS16550_COM1		NV_PA_APB_UARTA_BASE
 
+#define CONFIG_MACH_TYPE		MACH_TYPE_COLIBRI_TEGRA2
+
 /* I2C */
 #define CONFIG_SYS_I2C_TEGRA