Adds context_hub group to sensors HAL

Bug: 152005392
Bug: 152727489
Test: Compile pass. Verify sensor function.
Signed-off-by: Rick Chen <rickctchen@google.com>
Change-Id: Ifd7b9239a732619307bbb2e99d37791915fe7dc1
diff --git a/sensors/2.0/multihal/android.hardware.sensors@2.0-service-multihal.rc b/sensors/2.0/multihal/android.hardware.sensors@2.0-service-multihal.rc
index a4da3b0..0b3d4c2 100644
--- a/sensors/2.0/multihal/android.hardware.sensors@2.0-service-multihal.rc
+++ b/sensors/2.0/multihal/android.hardware.sensors@2.0-service-multihal.rc
@@ -1,7 +1,7 @@
 service vendor.sensors-hal-2-0-multihal /vendor/bin/hw/android.hardware.sensors@2.0-service.multihal
     class hal
     user system
-    group system wakelock
+    group system wakelock context_hub
     writepid /dev/cpuset/system-background/tasks
     capabilities BLOCK_SUSPEND
     rlimit rtprio 10 10