hikey960: bifrost: Enable renderscript binaries

Re-add the renderscript binaries to the build and
add sepolicy and manifest changes needed to support
ARM's renderscript library.

Change-Id: I743ffe93a4e41d73122dc0d2a1ad8eb962597649
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/sepolicy/app.te b/sepolicy/app.te
new file mode 100644
index 0000000..512230b
--- /dev/null
+++ b/sepolicy/app.te
@@ -0,0 +1 @@
+allow appdomain same_process_hal_file:file { read execute_no_trans };