Added canMapHostMemory feature

tests/src/hipHostAlloc.cpp

@@ -0,0 +1,20 @@
+#include<iostream>
+#include"test_common.h"
+
+__global__ void Add(hipLaunchParm lp, float *Ad, float *Bd, float *Cd){
+int tx = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
+Cd[tx] = Ad[tx] + Bd[tx];
+}
+
+int main(){
+float *A, *B, *C;
+float *Ad, *Bd, *Cd;
+
+hipDeviceProp_t prop;
+int device;
+hipGetDevice(&device);
+hipDeviceGetProperties(&prop, device);
+if(prop.canMapHostMemory != 1){
+std::cout<<"Exiting.."<<std::endl;
+}
+}