Disable mjsunit/spread-large-* in lite mode

Disable mjsunit/spread-large-array and mjsunit/spread-large-string in
lite mode.

Bug: v8:8394
Change-Id: I630efc1e2b397189b0ea1e602fbfa472851abe1f
Reviewed-on: https://chromium-review.googlesource.com/c/1386484Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58391}

test/mjsunit/mjsunit.status

@@ -341,6 +341,13 @@
   'array-constructor-feedback': [SKIP],
   'regress/regress-trap-allocation-memento': [SKIP],
   'regress/regress-4121': [SKIP],
+
+  # Slow tests without feedback vectors
+  # TODO(mythria): Investigate why they are slow and either fix if
+  # possible are update the reason why they are slow.
+  'spread-large-string': [SKIP],
+  'spread-large-array': [SKIP],
+
 }],  # 'lite_mode == True'
 
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