Instrumented libraries: fix install-build-deps.sh

Update a path following a recent change in directory structure.

BUG=none
TBR=glider@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1018043007

Cr-Commit-Position: refs/heads/master@{#321802}

third_party/instrumented_libraries/scripts/install-build-deps.sh

@@ -94,5 +94,5 @@ if test "$ubuntu_release" = "trusty" ; then
   # libglib2.0-0 removes libelf in favor of libelfg0.
   # We let Chromium's build deps take priority. So, run Chromium's
   # install-build-deps.sh to reinstall those that have been removed.
-  $(dirname ${BASH_SOURCE[0]})/../../build/install-build-deps.sh --no-prompt
+  $(dirname ${BASH_SOURCE[0]})/../../../build/install-build-deps.sh --no-prompt
 fi