aoc: add policy to read system property

Solves error: 1

2-13 18:33:15.860000  root  1019  1019 I auditd  : type=1400 audit(0.0:7): avc:  denied  { read } for  comm="aocd" name="u:object_r:vendor_rild_prop:s0" dev="tmpfs" ino=404 scontext=u:r:aocd:s0 tcontext=u:object_r:vendor_rild_prop:s0 tclass=file permissive=0

Test: on device
Bug: 207711097
Change-Id: Ia28e1622746cca973ca66f437e0e655bbcaf7d66
Signed-off-by: Alex Iacobucci <alexiacobucci@google.com>
diff --git a/aoc/sepolicy/aocd.te b/aoc/sepolicy/aocd.te
index b2bfd13..464e46b 100644
--- a/aoc/sepolicy/aocd.te
+++ b/aoc/sepolicy/aocd.te
@@ -20,4 +20,5 @@
 
 # set properties
 set_prop(aocd, vendor_aoc_prop)
-set_prop(aocd, vendor_timeout_aoc_prop)
\ No newline at end of file
+set_prop(aocd, vendor_timeout_aoc_prop)
+get_prop(aocd, vendor_volte_mif_off)
\ No newline at end of file