run-libcore-tests.py: add a --verbose option

This removes any filtering done by run-libcore-tests.py and passes the
verbose flag onto vogar.

Bug: 253209203
Test: art/tools/run-libcore-tests.sh --mode=device --variant=X64 --verbose
Change-Id: I8e0f589eb31cbe1dc3d50e8de9a1d892169cb300
1 file changed