Fix to get the logical key to ecore key variable

Fix to get the logical key to ecore key variable

- Ecore key variable should be the logical key,
  not the string name of the key pressed.
- For example, if the user press 'Shift + 2' key,
  keyPressedName is 2, but key variable is "at" and key string is "@".

Change-Id: I1c59b69873635e180e9e66f347c8ebe0b394ac9f
Signed-off-by: Seoyeon Kim <seoyeon2.kim@samsung.com>