tests: Do not run test_hdf5 if HDF5 is not present

This regression is failing on machines not supporting the
HDF5 library

Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Change-Id: I5c6762596dc86a9a2b0612d77f9f76e772d9fa42
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/48685
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
1 file changed