[PATCH 5/5] libtraceevent: Add dependency on libdl

[PATCH 5/5] libtraceevent: Add dependency on libdl

Forwarded: https://lore.kernel.org/lkml/20191226224931.3458-1-sudipm.mukherjee@gmail.com/

event-plugin.c is calling dl_*() functions but it is not linked with
libdl. As a result when we use ldd on the generated libtraceevent.so
file, it does not list libdl as one of its dependencies.
Add -ldl explicitly as done in tools/lib/lockdep.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name 0005-libtraceevent-Add-dependency-on-libdl.patch