hammerhead: Speaker audio cal data tuning

Speaker RX7 volumes decreased (-1dB)

Change-Id: Ia6cf9332a0ad1e34f10c084286145cf05dae2fc0
diff --git a/mixer_paths.xml b/mixer_paths.xml
index 4fb46fb..95a7f03 100644
--- a/mixer_paths.xml
+++ b/mixer_paths.xml
@@ -223,7 +223,7 @@
         <ctl name="SLIM RX1 MUX" value="AIF1_PB" />
         <ctl name="SLIM_0_RX Channels" value="One" />
         <ctl name="RX7 MIX1 INP1" value="RX1" />
-        <ctl name="RX7 Digital Volume" value="89" />
+        <ctl name="RX7 Digital Volume" value="88" />
         <ctl name="SPK DRV Volume" value="6" />
     </path>