Label /data/misc/zoneinfo

And allow any SELinux domain to read these timezone
related files.

Addresses the following denial:
<5>[    4.746399] type=1400 audit(3430294.470:7): avc:  denied  { open } for  pid=197 comm="time_daemon" name="tzdata" dev="mmcblk0p28" ino=618992 scontext=u:r:time:s0 tcontext=u:object_r:system_data_file:s0 tclass=file

Change-Id: Iff32465e62729d7aad8c79607848d89ce0aede86

domain.te

@@ -89,6 +89,9 @@ allow domain cache_file:dir r_dir_perms;
 allow domain cache_file:file { getattr read };
 allow domain cache_file:lnk_file read;
 
+# Read timezone related information
+r_dir_file(domain, zoneinfo_data_file)
+
 # For /acct/uid/*/tasks.
 allow domain cgroup:dir { search write };
 allow domain cgroup:file w_file_perms;

file.te

@@ -65,6 +65,7 @@ type radio_data_file, file_type, data_file_type;
 type systemkeys_data_file, file_type, data_file_type;
 type vpn_data_file, file_type, data_file_type;
 type wifi_data_file, file_type, data_file_type;
+type zoneinfo_data_file, file_type, data_file_type;
 
 # Compatibility with type names used in vanilla Android 4.3 and 4.4.
 typealias audio_data_file alias audio_firmware_file;

file_contexts

@@ -180,6 +180,7 @@
 /data/misc/systemkeys(/.*)?     u:object_r:systemkeys_data_file:s0
 /data/misc/vpn(/.*)?            u:object_r:vpn_data_file:s0
 /data/misc/wifi(/.*)?           u:object_r:wifi_data_file:s0
+/data/misc/zoneinfo(/.*)?       u:object_r:zoneinfo_data_file:s0
 
 # App sandboxes
 /data/data/.*		u:object_r:app_data_file:s0