8068040: [macosx] Combo box consuming ENTER key

Reviewed-by: serb, azvegint

src/macosx/classes/com/apple/laf/AquaComboBoxUI.java

@@ -273,7 +273,7 @@ public class AquaComboBoxUI extends BasicComboBoxUI implements Sizeable {
 
         actionMap.put("aquaSelectNext", highlightNextAction);
         actionMap.put("aquaSelectPrevious", highlightPreviousAction);
-        actionMap.put("aquaEnterPressed", triggerSelectionAction);
+        actionMap.put("enterPressed", triggerSelectionAction);
         actionMap.put("aquaSpacePressed", toggleSelectionAction);
 
         actionMap.put("aquaSelectHome", highlightFirstAction);

src/macosx/classes/com/apple/laf/AquaKeyBindings.java

@@ -214,7 +214,7 @@ public class AquaKeyBindings {
             "PAGE_DOWN", "aquaSelectPageDown",
             "HOME", "aquaSelectHome",
             "END", "aquaSelectEnd",
-            "ENTER", "aquaEnterPressed",
+            "ENTER", "enterPressed",
             "UP", "aquaSelectPrevious",
             "KP_UP", "aquaSelectPrevious",
             "DOWN", "aquaSelectNext",