Fixed autofill bots names in luci scheduler.

Bug: 885350
Change-Id: I8c1fed2a1bec2d3a649d12ccf26adc5920e1772a
Reviewed-on: https://chromium-review.googlesource.com/c/1372912Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Commit-Queue: Yiming Zhou <uwyiming@google.com>
Cr-Commit-Position: refs/heads/master@{#615753}

infra/config/global/luci-scheduler.cfg

@@ -1567,7 +1567,7 @@ job {
   buildbucket: {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.chromium.ci"
-    builder: "linux-autofill_captured_sites-rel"
+    builder: "linux-autofill-captured-sites-rel"
   }
 }
 
@@ -1915,7 +1915,7 @@ job {
   buildbucket: {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.chromium.ci"
-    builder: "mac-autofill_captured_sites-rel"
+    builder: "mac-autofill-captured-sites-rel"
   }
 }
 
@@ -4105,7 +4105,7 @@ job {
   buildbucket: {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.chromium.ci"
-    builder: "win-autofill_captured_sites-rel"
+    builder: "win-autofill-captured-sites-rel"
   }
 }