Move hidl shims to the vendor partition. (2/2)

We need google shims on the vendor partition because they are providing
an implementation of a vendor defined interface. They were written by
google just as a courtesy/to make the transition easier. They're
basically a set for vendors to assemble their hal implementations
from.

Bug: 34135607
Test: marlin persist.hal.binderization on/off
Change-Id: I2e2af5af39264cf290259755bb9b2eb9827a21f5
diff --git a/sensors/1.0/default/Android.bp b/sensors/1.0/default/Android.bp
index 994febe..3930504 100644
--- a/sensors/1.0/default/Android.bp
+++ b/sensors/1.0/default/Android.bp
@@ -1,5 +1,6 @@
 cc_library_shared {
     name: "android.hardware.sensors@1.0-impl",
+    proprietary: true,
     relative_install_path: "hw",
     srcs: ["Sensors.cpp"],
     shared_libs: [