Bug 1862063 - Set scrollend-event-fired-for-programmatic-scroll.html subtest as intermittent on linux asan/tsan. a=test-only

testing/web-platform/meta/dom/events/scrolling/scrollend-event-fired-for-programmatic-scroll.html.ini

@@ -1,10 +1,12 @@
 [scrollend-event-fired-for-programmatic-scroll.html]
   [Tests scrollend event for calling scroll functions.]
     expected:
-      if tsan: [FAIL, PASS]
+      if os == "linux" and asan: [FAIL, PASS]
+      if os == "linux" and tsan: [FAIL, PASS]
       if os == "android" and debug: [FAIL, PASS]
 
   [Tests scrollend event for changing scroll attributes.]
     expected:
-      if tsan: [FAIL, PASS]
+      if os == "linux" and asan: [FAIL, PASS]
+      if os == "linux" and tsan: [FAIL, PASS]
       if os == "android" and debug: [FAIL, PASS]