Allow init to create /dev/event-log-tags.

Now that creating a symlink automatically sets its context,
init needs permission to create this file.

Bug: 69965807
Test: Booted device and tested wifi and camera.
Change-Id: I41f5ca8f4d877312c9b2a909001fe9cd80c3d458

public/init.te

@@ -23,7 +23,7 @@ allow init properties_serial:file { write relabelto };
 allow init property_type:file { create_file_perms relabelto };
 # /dev/event-log-tags
 allow init device:file relabelfrom;
-allow init runtime_event_log_tags_file:file { open write setattr relabelto };
+allow init runtime_event_log_tags_file:file { open write setattr relabelto create };
 # /dev/socket
 allow init { device socket_device }:dir relabelto;
 # /dev/random, /dev/urandom