Don't symlink bmv2 target, copy it
Don't symlink bmv2 target, copy it

This is a nitpick, but the symlink forcing some very weird code in the
top makefile. Simplify by turning the symlink into a real file.

Signed-off-by: Marcelo E. Magallon <56cce93673b8e0eba950695f805812ddc478ba9f@hpe.com>

ops-p4/ops-p4dp,ops-p4/ops-p4dp,notmem/ops-p4dp,notmem/ops-p4dp,ops-p4/ops-p4dp,ops-p4/ops-p4dp,notmem/ops-p4dp,notmem/ops-p4dp