SWDEV-475244 - Memory Usage and Bandwidth: memory activity

Implemented memory activity and added a new fied id
RDC_FI_GPU_MEMORY_ACTIVITY.

Signed-off-by: Li Ma <li.ma@amd.com>
Change-Id: I11abe356ef6b01ce4917fd19dcc128efbc535f39

python_binding/RdcReader.py

@@ -7,6 +7,7 @@ default_field_ids = [
         rdc_field_t.RDC_FI_GPU_MEMORY_TOTAL,
         rdc_field_t.RDC_FI_GPU_MM_ENC_UTIL,
         rdc_field_t.RDC_FI_GPU_MM_DEC_UTIL,
+        rdc_field_t.RDC_FI_GPU_MEMORY_ACTIVITY,
         rdc_field_t.RDC_FI_OAM_ID,
         rdc_field_t.RDC_FI_POWER_USAGE,
         rdc_field_t.RDC_FI_GPU_CLOCK,