refactor(morello): update SDS driver calls

Update SDS driver calls to align with recent
changes [1] of the SDS driver.

- The driver now requires us to explicitly pass
  the SDS region id to act on.
- Implement plat_sds_get_regions() platform function
  which is used by the driver to get SDS region
  information per platform.

[1]: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/24609/

Change-Id: I942599edb4d9734c0455f67c6b5673aace62e444
Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Signed-off-by: David Vincze <david.vincze@arm.com>
diff --git a/plat/arm/board/morello/morello_image_load.c b/plat/arm/board/morello/morello_image_load.c
index 4ea2bb3..cfe8bee 100644
--- a/plat/arm/board/morello/morello_image_load.c
+++ b/plat/arm/board/morello/morello_image_load.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, Arm Limited. All rights reserved.
+ * Copyright (c) 2021-2024, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -13,6 +13,7 @@
 #include "morello_def.h"
 #include <plat/arm/common/plat_arm.h>
 #include <plat/common/platform.h>
+#include <platform_def.h>
 
 /* In client mode, a part of the DDR memory is reserved for Tag bits.
  * Calculate the usable memory size after subtracting the Tag memory.
@@ -167,13 +168,14 @@
 	struct morello_plat_info plat_info;
 	struct morello_firmware_version fw_version;
 
-	ret = sds_init();
+	ret = sds_init(SDS_SCP_AP_REGION_ID);
 	if (ret != SDS_OK) {
 		ERROR("SDS initialization failed. ret:%d\n", ret);
 		panic();
 	}
 
-	ret = sds_struct_read(MORELLO_SDS_PLATFORM_INFO_STRUCT_ID,
+	ret = sds_struct_read(SDS_SCP_AP_REGION_ID,
+				MORELLO_SDS_PLATFORM_INFO_STRUCT_ID,
 				MORELLO_SDS_PLATFORM_INFO_OFFSET,
 				&plat_info,
 				MORELLO_SDS_PLATFORM_INFO_SIZE,
@@ -183,7 +185,8 @@
 		panic();
 	}
 
-	ret = sds_struct_read(MORELLO_SDS_FIRMWARE_VERSION_STRUCT_ID,
+	ret = sds_struct_read(SDS_SCP_AP_REGION_ID,
+				MORELLO_SDS_FIRMWARE_VERSION_STRUCT_ID,
 				MORELLO_SDS_FIRMWARE_VERSION_OFFSET,
 				&fw_version,
 				MORELLO_SDS_FIRMWARE_VERSION_SIZE,