Fix MISRA Rule 5.7 Part 3

Rule 5.7: A tag name shall be a unique identifier

Follow convention of shorter names for smaller scope to fix
violations of MISRA rule 5.7

Fixed For:
    make ARM_TSP_RAM_LOCATION=tdram LOG_LEVEL=50 PLAT=fvp SPD=opteed

Change-Id: I5fbb5d6ebddf169550eddb07ed880f5c8076bb76
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
diff --git a/services/spd/opteed/opteed_private.h b/services/spd/opteed/opteed_private.h
index 6cda2c8..b77b6d3 100644
--- a/services/spd/opteed/opteed_private.h
+++ b/services/spd/opteed/opteed_private.h
@@ -154,7 +154,7 @@
 
 extern optee_context_t opteed_sp_context[OPTEED_CORE_COUNT];
 extern uint32_t opteed_rw;
-extern struct optee_vectors *optee_vectors;
+extern struct optee_vectors *optee_vector_table;
 #endif /*__ASSEMBLY__*/
 
 #endif /* __OPTEED_PRIVATE_H__ */