[sepolicy] allow installd to query apps installed on Incremental File System

Addresses denial messages like:
06-10 19:36:56.269  1214  1214 I Binder:1214_5: type=1400 audit(0.0:58): avc: denied { use } for path="/data/incremental/MT_data_app_vmdl199/backing_store/st_2_1/com.unity.megacity-HlbmeQJjThgePchBlByuoQ==" dev="dm-5" ino=10445 scontext=u:r:installd:s0 tcontext=u:r:vold:s0 tclass=fd permissive=1
06-10 19:36:56.516  1214  1214 I Binder:1214_6: type=1400 audit(0.0:59): avc: denied { use } for path="/data/incremental/MT_data_app_vmdl199/backing_store/st_2_1/com.unity.megacity-HlbmeQJjThgePchBlByuoQ==" dev="dm-5" ino=10445 scontext=u:r:installd:s0 tcontext=u:r:vold:s0 tclass=fd permissive=1

BUG: 190699430
Test: manual
Change-Id: Iee4bdb382b6af5bc8cd63fde2c0db5f0b9b4f02b
1 file changed