Expand MPID_MASK define to affinity level 3

Change-Id: If643498433dfa2007703227226064b9d12f4c242
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index de7d33b..1b123c6 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -59,6 +59,7 @@
 #define MPIDR_MAX_AFFLVL	U(2)
 
 #define MPID_MASK		(MPIDR_MT_MASK				 | \
+				 (MPIDR_AFFLVL_MASK << MPIDR_AFF3_SHIFT) | \
 				 (MPIDR_AFFLVL_MASK << MPIDR_AFF2_SHIFT) | \
 				 (MPIDR_AFFLVL_MASK << MPIDR_AFF1_SHIFT) | \
 				 (MPIDR_AFFLVL_MASK << MPIDR_AFF0_SHIFT))