aarch64: define FF-A world IDs ranges

Define FF-A ID ranges such that IDs:
-from 1 to 0x7fff are reserved to NWd VMs.
-from 0x8001 to 0xfffe are reserved to SWd Secure Partitions.

IDs 0 and 0x8000 are reserved respectively to the Hypervisor
and the SPMC. ID 0xffff is provisioned for the SPMD.

Change-Id: I42137ccc5ff9b3e26737618af2d9f2be146a3421
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/src/dlog.c b/src/dlog.c
index 104eedb..c0e4eda 100644
--- a/src/dlog.c
+++ b/src/dlog.c
@@ -226,7 +226,7 @@
 	lock();
 
 	print_raw_string("VM ");
-	print_num(id, 10, 0, 0);
+	print_num(id, 16, 0, 0);
 	print_raw_string(": ");
 
 	for (size_t i = 0; i < length; ++i) {