SWDEV-272921, SWDEV-270961 - correct index and linkage

Change-Id: I48a66091bb6f304864e282bd03e9eb748fa04da7

hipamd/docs/markdown/hip_porting_guide.md

@@ -466,7 +466,7 @@ __constant__ int Value[LEN];
 
 __global__ void Get(hipLaunchParm lp, int *Ad)
 {
-    int tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
+    int tid = threadIdx.x + blockIdx.x * blockDim.x;
     Ad[tid] = Value[tid];
 }