Fix unit tests' size to @LargeTest for action label tests

...oid/inputmethod/keyboard/action/KlpActionCustomTests.java

...droid/inputmethod/keyboard/action/KlpActionDoneTests.java

...android/inputmethod/keyboard/action/KlpActionGoTests.java

...droid/inputmethod/keyboard/action/KlpActionNextTests.java

...droid/inputmethod/keyboard/action/KlpActionNoneTests.java

...d/inputmethod/keyboard/action/KlpActionPreviousTests.java

...oid/inputmethod/keyboard/action/KlpActionSearchTests.java

...droid/inputmethod/keyboard/action/KlpActionSendTests.java

...nputmethod/keyboard/action/KlpActionUnspecifiedTests.java

...oid/inputmethod/keyboard/action/LxxActionCustomTests.java

...droid/inputmethod/keyboard/action/LxxActionDoneTests.java

...android/inputmethod/keyboard/action/LxxActionGoTests.java

...droid/inputmethod/keyboard/action/LxxActionNextTests.java

...droid/inputmethod/keyboard/action/LxxActionNoneTests.java

...d/inputmethod/keyboard/action/LxxActionPreviousTests.java

...oid/inputmethod/keyboard/action/LxxActionSearchTests.java

...droid/inputmethod/keyboard/action/LxxActionSendTests.java

...nputmethod/keyboard/action/LxxActionUnspecifiedTests.java