Fix Apache license comment

...nputmethod/accessibility/AccessibleKeyboardViewProxy.java

java/src/com/android/inputmethod/keyboard/Key.java

java/src/com/android/inputmethod/keyboard/KeyDetector.java

java/src/com/android/inputmethod/keyboard/Keyboard.java

.../android/inputmethod/keyboard/KeyboardActionListener.java

java/src/com/android/inputmethod/keyboard/KeyboardId.java

...c/com/android/inputmethod/keyboard/KeyboardLayoutSet.java

...rc/com/android/inputmethod/keyboard/KeyboardSwitcher.java

...rc/com/android/inputmethod/keyboard/MoreKeysKeyboard.java

.../src/com/android/inputmethod/keyboard/PointerTracker.java

java/src/com/android/inputmethod/keyboard/ProximityInfo.java

...inputmethod/keyboard/internal/AbstractDrawingPreview.java

...oid/inputmethod/keyboard/internal/AlphabetShiftState.java

...tmethod/keyboard/internal/GestureFloatingPreviewText.java

...id/inputmethod/keyboard/internal/GesturePreviewTrail.java

.../android/inputmethod/keyboard/internal/GestureStroke.java

...hod/keyboard/internal/GestureStrokeWithPreviewPoints.java

.../android/inputmethod/keyboard/internal/KeySpecParser.java

...c/com/android/inputmethod/keyboard/internal/KeyStyle.java

...m/android/inputmethod/keyboard/internal/KeyStylesSet.java