MIF frequency optimization for 60fps video recording use-case

This CL sets the MIF min clock frequency to 1539MHz, which based on
initial ODPM and MIPS measurements shows benefit both in terms of power
consumption and cycles-per-instructions (CPI), reducing the gap with R4
device.

L10 power and performance impact tests will update on the bug.

Bug: 239651545
Test: Build pass, GCA
Change-Id: I1b057f187e45bad46f4661bd5673f0f88aab3a93

powerhint.json

@@ -5,6 +5,7 @@
       "Path": "/sys/devices/platform/17000010.devfreq_mif/devfreq/17000010.devfreq_mif/min_freq",
       "Values": [
         "3172000",
+        "1539000",
         "1014000",
         "421000"
       ],
@@ -940,7 +941,7 @@
       "PowerHint": "CAMERA_STREAMING_HIGH",
       "Node": "MemFreq",
       "Duration": 0,
-      "Value": "1014000"
+      "Value": "1539000"
     },
     {
       "PowerHint": "CAMERA_STREAMING_HIGH",