platform: msm_shared: Add platform id for APQ8084

Add apq8084 platform id.

Change-Id: Ia33cf595cd2ea9f86855407a999b0c8520ebaf01
diff --git a/platform/msm_shared/smem.h b/platform/msm_shared/smem.h
index 0182cb3..beed1e8 100755
--- a/platform/msm_shared/smem.h
+++ b/platform/msm_shared/smem.h
@@ -292,6 +292,7 @@
 	MSM8125   = 167,
 	MDM9310   = 171,
 	APQ8064AA = 172, /* aka V2 SLOW_PRIME */
+	APQ8084   = 178,
 	MSM8130   = 179,
 	MSM8130AA = 180,
 	MSM8130AB = 181,