frameworks/base: update library path name in Activity Trigger

Change path from /system/lib to /vendor/lib
since it is no longer needed.

Change-Id: I5fa7a367b21d4128c92ab7190944c176a1f4dae6
(cherry picked from commit 7abea046455c1c8fc99126ae6cf9a6d4823ca50f)
(cherry picked from commit 5aadc3f081bef5b26b13e0bb4955354e3be0bcd7)
(cherry picked from commit 133db12892589a21865a900c3709073ed86eaf8a)