fix: rename load address relative offset node name

Replace "relative-address" with "load-address-relative-offset" as the
node name in the memory region node of secure partition manifest.

Change-Id: I34d423ef0ae7e86a5517a2f7e4293eff97aeabf7
Signed-off-by: Davidson K <davidson.kumaresan@arm.com>
diff --git a/src/manifest.c b/src/manifest.c
index 28aff31..bda513a 100644
--- a/src/manifest.c
+++ b/src/manifest.c
@@ -655,9 +655,9 @@
 		dlog_verbose("      Base address: %#lx\n",
 			     mem_regions[i].base_address);
 
-		TRY(read_optional_uint64(mem_node, "relative-address",
-					 MANIFEST_INVALID_ADDRESS,
-					 &relative_address));
+		TRY(read_optional_uint64(
+			mem_node, "load-address-relative-offset",
+			MANIFEST_INVALID_ADDRESS, &relative_address));
 		if (relative_address != MANIFEST_INVALID_ADDRESS) {
 			dlog_verbose("      Relative address:  %#lx\n",
 				     relative_address);