Add crosvm domain and give virtmanager and crosvm necessary permissions.

Bug: 183583115
Test: make TARGET_KERNEL_USE=5.4 TARGET_VIM3L=true
Change-Id: I566436fa2d27597566014f2a63198a88d6d2dbd6
diff --git a/private/init.te b/private/init.te
index 2627add..3315a35 100644
--- a/private/init.te
+++ b/private/init.te
@@ -89,3 +89,12 @@
 
 # Allow accessing /sys/kernel/tracing/instances/bootreceiver to set up tracing.
 allow init debugfs_bootreceiver_tracing:file w_file_perms;
+
+# chown/chmod on devices.
+allow init {
+  dev_type
+  -hw_random_device
+  -keychord_device
+  -kvm_device
+  -port_device
+}:chr_file setattr;