Tegra194: helper functions for CPU rst handler and SMMU ctx offset

This patch adds a helper function to get the SMMU context's offset
and uses another helper function to get the CPU trampoline offset.
These helper functions are used by the System Suspend entry sequence
to save the SMMU context and CPU reset handler to TZDRAM.

Change-Id: I95e2862fe37ccad00fa48ec165c6e4024df01147
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/plat/nvidia/tegra/include/t194/tegra194_private.h b/plat/nvidia/tegra/include/t194/tegra194_private.h
new file mode 100644
index 0000000..f5de017
--- /dev/null
+++ b/plat/nvidia/tegra/include/t194/tegra194_private.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __TEGRA194_PRIVATE_H__
+#define __TEGRA194_PRIVATE_H__
+
+void tegra194_cpu_reset_handler(void);
+uint64_t tegra194_get_cpu_reset_handler_base(void);
+uint64_t tegra194_get_cpu_reset_handler_size(void);
+uint64_t tegra194_get_smmu_ctx_offset(void);
+
+#endif /* __TEGRA194_PRIVATE_H__ */