Fix rocprofiler plugin

- Replace non-working fields with working ones
    - remove CU_OCCUPANCY completely as it isn't well supported
- Fix rocprofiler initialization with shared_ptr and rdc_module_init
- Replace env var ROCPROFILER_METRICS_PATH with ROCP_METRICS
    - ROCPROFILER_METRICS_PATH is only relevant for rocprofv2
    - ROCP_METRICS is only relevant for rocprofv1 (which we are using)

Change-Id: I21e6fa3f0e1694c38f44ca0e5659d672559f7380
Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>

tests/rdc_tests/functional/rdci_group.cc

@@ -83,7 +83,7 @@ void TestRdciGroup::Run(void) {
     ASSERT_EQ(result, RDC_ST_OK);
   }
 
-  rdc_gpu_group_t group_id;
+  rdc_gpu_group_t group_id = 0;
   uint32_t count = 0;
   rdc_group_info_t group_info;
   uint32_t gpu_index_list[RDC_MAX_NUM_DEVICES];