Install VNDK libraries into vendor or product lib with flag

Install VNDK libraries into vendor or product lib when flag
'KEEP_VNDK' is set as false from build. This flag will be used to
test while deprecating VNDK step by step.

Bug: 290157355
Test: build succeded with DEPRECATE_VNDK succeded
Test: Cuttlefish boot succeded with sepolicy disabled
Change-Id: I05b166f054113ae2775df4e310916d0ea4af3fb6