platform: msm_shared: Add Platform ID for SDA450 targets.

Add platform id for sda450 targets.

Change-Id: I1d67cec9a3e1952605aa49c14196c958ee7ecc2a
diff --git a/platform/msm_shared/smem.h b/platform/msm_shared/smem.h
index b931ca4..49a4ab2 100644
--- a/platform/msm_shared/smem.h
+++ b/platform/msm_shared/smem.h
@@ -465,7 +465,8 @@
 	MSM8909W = 300,
 	APQ8009W = 301,
 	SDM450 = 338,
-	MDM9206 = 322
+	MDM9206 = 322,
+	SDA450 = 351
 };
 
 enum platform {