Fix LD_LIBRARY_PATH not set

Current test fails with error:

./tests/bluez-test.sh: 15: common/update-test-path: LD_LIBRARY_PATH: parameter not set

The common/update-test-path script may be called without LD_LIBRARY_PATH not set. Moving the call before the set -eux allows to run the test.

Signed-off-by: Frédéric Danis frederic.danis@collabora.com