Populate BL31 input parameters as per new spec

This patch is based on spec published at
https://github.com/ARM-software/tf-issues/issues/133

It rearranges the bl31_args struct into
bl31_params and bl31_plat_params which provide the
information needed for Trusted firmware and platform
specific data via x0 and x1

On the FVP platform BL3-1 params and BL3-1 plat params
and its constituents are stored at the start of TZDRAM.

The information about memory availability and size for
BL3-1, BL3-2 and BL3-3 is moved into platform specific data.

Change-Id: I8b32057a3d0dd3968ea26c2541a0714177820da9
diff --git a/services/spd/tspd/tspd_main.c b/services/spd/tspd/tspd_main.c
index 9fda307..15f7ffe 100644
--- a/services/spd/tspd/tspd_main.c
+++ b/services/spd/tspd/tspd_main.c
@@ -76,7 +76,7 @@
  ******************************************************************************/
 int32_t tspd_setup(void)
 {
-	el_change_info_t *image_info;
+	entry_point_info_t *image_info;
 	int32_t rc;
 	uint64_t mpidr = read_mpidr();
 	uint32_t linear_id;
@@ -96,7 +96,7 @@
 	 * signalling failure initializing the service. We bail out without
 	 * registering any handlers
 	 */
-	if (!image_info->entrypoint)
+	if (!image_info->pc)
 		return 1;
 
 	/*
@@ -104,7 +104,7 @@
 	 * state i.e whether AArch32 or AArch64. Assuming it's AArch64
 	 * for the time being.
 	 */
-	rc = tspd_init_secure_context(image_info->entrypoint,
+	rc = tspd_init_secure_context(image_info->pc,
 				     TSP_AARCH64,
 				     mpidr,
 				     &tspd_sp_context[linear_id]);