[PATCH] tests: aarch64: fix makefile dependencies for dlopen tests for BTI

[Wilco Dijkstra]

Hi Yury,
 
> Some BTI tests in the sysdeps/unix/sysv/linux/aarch64 directory use
> test shared objects via dlopen. Due to lack of direct makefile level
> dependencies on these modules these tests could be run before the
> required .so files would be created. This could lead to flaky test
> results when running make check with -j flag. This commit fixes it.

LGTM

Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>

However I'm wondering whether there isn't an easier way, eg.
add all the tests that use a .so to a list and then adding the
dependencies using a standard rule?

Cheers,
Wilco