platform: msm_shared: Add api to get hw platform name

Add api to get hw platform name via board hardware id.

Change-Id: Ieb1f329faad2412730eb362bd5357792be94fc5a
diff --git a/platform/msm_shared/smem.h b/platform/msm_shared/smem.h
index ede3841..6eda190 100644
--- a/platform/msm_shared/smem.h
+++ b/platform/msm_shared/smem.h
@@ -667,4 +667,5 @@
 void* smem_get_alloc_entry(smem_mem_type_t type, uint32_t* size);
 uint32_t get_ddr_start();
 uint64_t smem_get_ddr_size();
+size_t smem_get_hw_platform_name(void *buf, uint32 buf_size);
 #endif				/* __PLATFORM_MSM_SHARED_SMEM_H */