Add 'Linux LTO' buildbot (recipes part).

masters/master.chromium.fyi/master.cfg

Index: masters/master.chromium.fyi/master.cfg
diff --git a/masters/master.chromium.fyi/master.cfg b/masters/master.chromium.fyi/master.cfg
index 1a4282b965c2cd2fa1464360f26a234ae24eaf0a..ba7e6a3101fd0901be114ffbe9a37f74903eed20 100644
--- a/masters/master.chromium.fyi/master.cfg
+++ b/masters/master.chromium.fyi/master.cfg
@@ -128,6 +128,7 @@ s_chromium = Scheduler(
                   'CFI Linux',
                   'CFI Linux ToT',
                   'CFI Linux CF',
+                  'LTO Linux',
                   'LTO Linux Perf',
                   'UBSanVptr Linux',
                   'Win 10 Fast Ring',
@@ -1028,11 +1029,20 @@ b_chromium_cfi_linux_cf = {
   'auto_reboot': True,
 }
 
+b_chromium_lto_linux = {
+  'name': 'LTO Linux',
+  'factory': m_annotator.BaseFactory('chromium',
+                                     timeout=12000),
+  'builddir': 'google-chrome-lto-linux_64',
+  'category': 'chromium_cfi',
+  'auto_reboot': True,
+}
+
 b_chromium_lto_linux_perf = {
   'name': 'LTO Linux Perf',
   'factory': m_annotator.BaseFactory('chromium',
                                      timeout=12000),
-  'builddir': 'google-chrome-lto-linux_64',
+  'builddir': 'google-chrome-lto-perf-linux_64',
   'category': 'chromium_cfi',
   'auto_reboot': True,
 }
@@ -1246,6 +1256,7 @@ c['builders'] = [
   b_chromium_cfi_linux_cf,
 
   # LTO
+  b_chromium_lto_linux,
   b_chromium_lto_linux_perf,
 
   # UBSan Vptr