Add flag for disabling minimum of ntp tile suggestions

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index e4a2b2544b944f67cab2b4df9bb5c02a8fef7bed..2b59d539d3174e7952da39cf006557cf5be43b60 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -103832,6 +103832,7 @@ from previous Chrome versions.
   <int value="-1391693054"
       label="ContentSuggestionsFaviconsFromNewServer:disabled"/>
   <int value="-1386966873" label="disable-mac-views-native-app-windows"/>
+  <int value="-1385483647" label="SuggestionsWithoutMinimum:enabled"/>
   <int value="-1377186702" label="DesktopIOSPromotion:disabled"/>
   <int value="-1375111024" label="enable-fixed-position-compositing"/>
   <int value="-1365503870" label="enable-simplified-fullscreen-ui"/>
@@ -104408,6 +104409,7 @@ from previous Chrome versions.
   <int value="908523940" label="PassiveEventListenersDueToFling:disabled"/>
   <int value="909439558" label="disable-device-discovery"/>
   <int value="916316159" label="disable-new-app-list-mixer"/>
+  <int value="924935505" label="SuggestionsWithoutMinimum:disabled"/>
   <int value="926852901" label="DataReductionProxyMainMenu:disabled"/>
   <int value="929462705" label="disable-link-disambiguation-popup"/>
   <int value="935655516" label="password-import-export:disabled"/>