RMX1921: sepolicy: Fix isolated_app denial

avc: denied { setattr } for comm="CrUtilityMain" name="manifest.json" dev="sda14" ino=1049910 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c231,c256,c512,c768 tclass=file permissive=0
avc: denied { setattr } for comm="CrUtilityMain" name="verified_contents.json" dev="sda14" ino=1049948 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c231,c256,c512,c768 tclass=file permissive=0

Change-Id: I9a70417149c3239b89cc4266942cb3de4da34a4f
Signed-off-by: kaderbava <ksbava7325@gmail.com>