ENYO-112: Apply TranslateScrollStrategy on Android 4.3 or higher

Issue
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TouchScrollStrategy is applied on Android 4.3 or higher, not TranslateScrollStrategy

Cause
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UserAgnet string is chagned from WebView of Android 4.3
Enyo Platform name is as following
~ Android 4.2 (JellyBean) : enyo.platform.android = 4
Android 4.3 (JellyBean) : enyo.platform.androidChrome = 27
Android 4.4 (Kitkat) : enyo.platform.androidChrome = 30 

Fix
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Add condition (enyo.platform.androidChrome >= 2) to getTouchStargety function

Enyo-DCO-1.1-Signed-off-by: Seungho Park <seunghoh.park@lge.com>