audio: Phase in audio_policy_volumes.xml in L10

I put refine volume curve file in the attached file.
This new tuning slightly increase 10th~20th volume step loudness.
It fixes user's bug  "16th volume step loudness is quiet compared to B3".

Files from the latest attachment on b/257197305

Bug: 254569854
Bug: 257197305
Test: verified by supery@
Change-Id: I2f0d887da27b898259209afe33d578471b308589

audio/lynx/config/audio_policy_volumes.xml

@@ -82,10 +82,10 @@ volume index from 0 to 100.
     <volume stream="AUDIO_STREAM_MUSIC" deviceCategory="DEVICE_CATEGORY_SPEAKER">
         <point>1,-6200</point>
         <point>28,-3800</point>
-        <point>64,-2000</point>
-        <point>68,-1800</point>
-        <point>72,-1600</point>
-        <point>76,-1400</point>
+        <point>64,-1900</point>
+        <point>68,-1700</point>
+        <point>72,-1500</point>
+        <point>76,-1300</point>
         <point>80,-1150</point>
         <point>88,-850</point>
         <point>92,-650</point>