Move camera hal imp to vendor partition

In order to make generic system image, these HAL implementation need to
be moved from system to vendor partition.

Bug: 36043196
Test: make, flash and make sure that they are at /vendor/lib[64]/hw.
Change-Id: I486cd32c36143102b3923acc58fda4f8aec30cb1

camera/device/1.0/default/Android.bp

@@ -1,6 +1,7 @@
 cc_library_shared {
     name: "camera.device@1.0-impl",
     defaults: ["hidl_defaults"],
+    proprietary: true,
     srcs: [
         "CameraDevice.cpp",
     ],

camera/device/3.2/default/Android.bp

@@ -1,6 +1,7 @@
 cc_library_shared {
     name: "camera.device@3.2-impl",
     defaults: ["hidl_defaults"],
+    proprietary: true,
     srcs: ["CameraDevice.cpp",
            "CameraDeviceSession.cpp",
            "convert.cpp"],