Tegra: memmap Tegra micro-seconds timer controller

This patch adds the Tegra micro-seconds controller to the
memory map. This allows us to use the delay_timer functionality.

Change-Id: Ia8b148a871949bfede539974cacbe0e93ec7e77c
Signed-off-by: Steven Kao <skao@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/plat/nvidia/tegra/include/t186/tegra_def.h b/plat/nvidia/tegra/include/t186/tegra_def.h
index ae11d28..6693cb3 100644
--- a/plat/nvidia/tegra/include/t186/tegra_def.h
+++ b/plat/nvidia/tegra/include/t186/tegra_def.h
@@ -237,6 +237,7 @@
  * Tegra micro-seconds timer constants
  ******************************************************************************/
 #define TEGRA_TMRUS_BASE		0x0C2E0000
+#define TEGRA_TMRUS_SIZE		0x1000
 
 /*******************************************************************************
  * Tegra Power Mgmt Controller constants