Bug 1286075: set workerType correctly for linux64 asan; r=gps

MozReview-Commit-ID: CaTBvegz1LU

--HG--
extra : rebase_source : 0cba5a3fc0383ed01fa3de18fc522314e4bd022f

taskcluster/ci/legacy/tasks/builds/dbg_linux64_asan.yml

@@ -12,7 +12,7 @@ task:
     - 'index.buildbot.branches.{{project}}.linux64-asan'
     - 'index.buildbot.revisions.{{head_rev}}.{{project}}.linux64-asan'
 
-  workerType: dbg-linux64
+  workerType: gecko-{{level}}-b-linux
 
   payload:
     env:

taskcluster/ci/legacy/tasks/builds/opt_linux64_asan.yml

@@ -12,7 +12,7 @@ task:
     - 'index.buildbot.branches.{{project}}.linux64-asan'
     - 'index.buildbot.revisions.{{head_rev}}.{{project}}.linux64-asan'
 
-  workerType: opt-linux64
+  workerType: gecko-{{level}}-b-linux
 
   payload:
     env: