Enable prefer_idle for nnapi vendor group

Bug: 182509410
Signed-off-by: Taeju Park <taeju@google.com>
Change-Id: I1b58018120f4575f2b12faa15c24c41f1c3b4e8e
diff --git a/conf/init.gs101.rc b/conf/init.gs101.rc
index b4b9df1..8d54875 100644
--- a/conf/init.gs101.rc
+++ b/conf/init.gs101.rc
@@ -217,6 +217,7 @@
     start watchdogd
 
     # Add a boost for NNAPI HAL
+    write /sys/kernel/vendor_sched/nnapi_prefer_idle 1
     write /sys/kernel/vendor_sched/nnapi_uclamp_min 154
 
     # Add memlat governor settings