build: add OVERRIDE_BUILT_MODULE_PATH.

N/A

1. OVERRIDE_BUILT_MODULE_PATH is only allowed to be used by the internal SHARED_LIBRARIES build files.
2. OVERRIDE_BUILT_MODULE_PATH put the built targets of all shared libraries in a common directory to simplify the link line.

Signed-off-by: liminghao <liminghao@xiaomi.com>