CAS: Add SYS_NICE Capability

Add SYS_NICE capability to the CAS services. This will enable the
service to set its priority.

Bug: 286011513
Test: Build
Change-Id: I5cd58a3a9db53fcc004557a8e9f509ebd6291c2d
diff --git a/cas/aidl/default/cas-default-lazy.rc b/cas/aidl/default/cas-default-lazy.rc
index 60b59ca..7321cf0 100644
--- a/cas/aidl/default/cas-default-lazy.rc
+++ b/cas/aidl/default/cas-default-lazy.rc
@@ -3,6 +3,7 @@
     class hal
     user media
     group mediadrm drmrpc
+    capabilities SYS_NICE
     ioprio rt 4
     task_profiles ProcessCapacityHigh
     oneshot