Add 30 more slaves into 'LTO Linux Perf' buildbot.

masters/master.chromium.fyi/slaves.cfg

Index: masters/master.chromium.fyi/slaves.cfg
diff --git a/masters/master.chromium.fyi/slaves.cfg b/masters/master.chromium.fyi/slaves.cfg
index c0f84e85814435ec159b3edadf9891d802bff66f..c7542b759ef6765062347944d801e5b1d0e76745 100644
--- a/masters/master.chromium.fyi/slaves.cfg
+++ b/masters/master.chromium.fyi/slaves.cfg
@@ -611,7 +611,6 @@ slaves = [
     'builder': [
       'CFI Linux CF',
       'LTO Linux',
-      'LTO Linux Perf',
     ],
     'hostname': 'slave33-c1',
     'os': 'linux',
@@ -686,3 +685,13 @@ slaves = [
     'bits': '64',
   },
 ]
+
+for slave in range(78, 108):
+  slaves.append({
+    'master': 'ChromiumFYI',
+    'builder': 'LTO Linux Perf',
+    'hostname': 'slave%d-c1' % slave,
+    'os': 'linux',
+    'version': 'trusty',
+    'bits': '64',
+  })