feat(interrupts): ns interrupt action in manifest

Each SP specifies the action it supports in response to a
non secure interrupt triggering in secure world through its
manifest.

Possible actions are:
NS_ACTION_QUEUED
NS_ACTION_ME
NS_ACTION_SIGNALED

Change-Id: I6a6249038e3e28cc508f62cd6a47de8f65cd60d6
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
diff --git a/src/vcpu.c b/src/vcpu.c
index cb7bcca..1f154a8 100644
--- a/src/vcpu.c
+++ b/src/vcpu.c
@@ -65,6 +65,7 @@
 	vcpu->vm = vm;
 	vcpu->state = VCPU_STATE_OFF;
 	vcpu->direct_request_origin_vm_id = HF_INVALID_VM_ID;
+	vcpu->present_action_ns_interrupts = NS_ACTION_INVALID;
 }
 
 /**