redbull: powerhint: update CPU6 min freq

Bug: 144961968
Test: run pts -m PtsPerformanceTestCases -t com.google.android.perf.pts.PowerHALAPITest
Test: run pts -m PtsPerformanceTestCases -t com.google.android.perf.pts.PowerHintJsonVerifyTest
Change-Id: Ia225fd067997b443dcf72c7702165cd5447197aa
diff --git a/powerhint.json b/powerhint.json
index a91da47..29f6054 100644
--- a/powerhint.json
+++ b/powerhint.json
@@ -37,8 +37,8 @@
       "Path": "/sys/devices/system/cpu/cpu6/cpufreq/scaling_min_freq",
       "Values": [
         "9999999",
-        "1996800",
-        "1766400",
+        "1900800",
+        "1728000",
         "1478400",
         "652800"
       ],