SWDEV-481861 - Add hipEventDestory for every hipEventCreate in all samples.

Change-Id: Ib1b860b02ef2640f321d54902b34ecf0e495ed65


[ROCm/hip-tests commit: dac779c834]

projects/hip-tests/samples/2_Cookbook/1_hipEvent/hipEvent.cpp

@@ -129,6 +129,9 @@ int main() {
 
     printf("hipMemcpyDeviceToHost time taken  = %6.3fms\n", eventMs);
 
+    checkHipErrors(hipEventDestroy(start));
+    checkHipErrors(hipEventDestroy(stop));
+
     // CPU MatrixTranspose computation
     matrixTransposeCPUReference(cpuTransposeMatrix, Matrix, WIDTH);