adbd: allow reading apk_data_file

(cherry picked from commit d743ddea)

avc: denied { search } for comm=73657276696365203139 name="app" dev="sda35" ino=770049 scontext=u:r:adbd:s0 tcontext=u:object_r:apk_data_file:s0 tclass=dir permissive=0

Bug: 30000600
Change-Id: I86958ebcca815ee1779f85fb425592493f40101a

adbd.te

@@ -111,3 +111,5 @@ allow adbd mnt_user_file:lnk_file r_file_perms;
 # accesses to the underlying FS.
 allow adbd media_rw_data_file:dir create_dir_perms;
 allow adbd media_rw_data_file:file create_file_perms;
+
+r_dir_file(adbd, apk_data_file)