cameraservice: Add libcamera_metadata to static lib

- Enable VTS to link to the lib when running as a vendor
test since libcamera_metadata may not be installed in vendor
if there is no dependency

Test: VtsHalCameraServiceV2_0TargetTest,
    VtsAidlCameraServiceTargetTest
Bug: 316652446
Change-Id: I177ca87606d8d725702a9f79d63a78c092a4d75b
1 file changed