Update SPCI_VERSION implementation to match latest spec.

This also updates the version number from 0.9 to 1.0.

Bug: 132420445
Change-Id: I991ea9f71634935c21a590f9309dd66ac910eff5
diff --git a/src/arch/aarch64/hypervisor/handler.c b/src/arch/aarch64/hypervisor/handler.c
index 4a4f035..924d024 100644
--- a/src/arch/aarch64/hypervisor/handler.c
+++ b/src/arch/aarch64/hypervisor/handler.c
@@ -323,7 +323,7 @@
 	 */
 	switch (func) {
 	case SPCI_VERSION_32:
-		*args = api_spci_version();
+		*args = api_spci_version(args->arg1);
 		return true;
 	case SPCI_ID_GET_32:
 		*args = api_spci_id_get(current());