support/testing: test_openssh: use a prebuilt toolchain
Switch from the Buildroot internal toolchain for armv5 to
the prebuilt Bootlin external toolchain.
The test doesn't require to build a toolchain, there was
no prebuilt glibc toolchain recent enough at the time this
test has been introduced.
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Romain Naour