Change the content of lsdump_paths.txt to newline-separated paths

This commit changes the delimiters from space characters to newline
characters so that lsdump_paths.txt can be easily read and parsed by
human.

Bug: 111814844
Test: m vndk findlsdumps -j18
Change-Id: I5c50934a0f035244cff71351d9f4be4203222590