Add perf determinism to perf_level_string

This fixes the 'unknown' value being displayed
for Perf Level because of a missing mapping of
RSMI_DEV_PERF_LEVEL_DETERMINISM to its string
value.

Signed-off-by: Divya Shikre <DivyaUday.Shikre@amd.com>
Change-Id: I479c2baea450f0ff61640ad81cbd4d08ad56ff8e

python_smi_tools/rsmiBindings.py

@@ -153,6 +153,7 @@ def perf_level_string(i):
         5:  'STABLE_PEAK',
         6:  'STABLE_MIN_MCLK',
         7:  'STABLE_MIN_SCLK',
+        8:  'PERF_DETERMINISM',
     }
     return switcher.get(i, 'UNKNOWN')