Replace sys_nice capability with rlimit rtprio

rlimit rtprio is more specific and thus preferred.

Test: HubConnection thread get rtprio in sailfish
Bug: 37291237
Change-Id: I3c7a06cb2964dc3ccb4c3f6fcb4eb33561296af1
diff --git a/sensors/1.0/default/android.hardware.sensors@1.0-service.rc b/sensors/1.0/default/android.hardware.sensors@1.0-service.rc
index 6e78082..3e5d0f8 100644
--- a/sensors/1.0/default/android.hardware.sensors@1.0-service.rc
+++ b/sensors/1.0/default/android.hardware.sensors@1.0-service.rc
@@ -2,4 +2,5 @@
     class hal
     user system
     group system wakelock
-    capabilities BLOCK_SUSPEND SYS_NICE
+    capabilities BLOCK_SUSPEND
+    rlimit rtprio 10 10