PC Sampling: API to list supported configurations

Add new PC Sampling API to list the supported PC Sampling methods and
options on a specific agent. If there is already a PC Sampling session
active on this agent, the list of methods returned will be reduced to
methods that can be run simultaneously with the current active session.

Change-Id: I42ac2b8f30d5c368faf8ed4cf37ca4134db22985

runtime/hsa-runtime/pcs/pcs_runtime.cpp

@@ -94,6 +94,13 @@ void PcsRuntime::DestroySingleton() {
 }
 
 void ReleasePcSamplingRsrcs() { PcsRuntime::DestroySingleton(); }
+hsa_status_t PcsRuntime::PcSamplingIterateConfig(
+    core::Agent* agent, hsa_ven_amd_pcs_iterate_configuration_callback_t configuration_callback,
+    void* callback_data) {
+  AMD::GpuAgentInt* gpu_agent = static_cast<AMD::GpuAgentInt*>(agent);
+  return gpu_agent->PcSamplingIterateConfig(configuration_callback, callback_data);
+}
+
 
 }  // namespace pcs
 }  // namespace rocr