fix the broken ceilometer.conf.sample link
fix the broken ceilometer.conf.sample link

Change-Id: I37ce2b1e10019e5a77217d458113155a26a2c59f
Fixes: bug #1177332
(cherry picked from commit 1d4533e915a2d812af19d61937916b882d1f7da1)

shootstar/ctest,shootstar/ctest