WP8: Avoid config `value` of a wrong element.
WP8: Avoid config `value` of a wrong element.

If you have an element that shares the `name`, like <feature
name="SplashScreen">, then the `value` attribute was read of that
instead (since it can appear *before* the preference element). Thus, the
config of `SplashScreen` preference was not settable at all.

Newstex/cordova-plugin-splashscreen,kitmaxdevelop/cordova-plugin-splashscreen,Panajev/cordova-plugin-splashscreen,revolunet/cordova-plugin-splashscreen,revolunet/cordova-plugin-splashscreen,bamlab/cordova-plugin-splashscreen,Seedstars/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,revolunet/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,dpolivy/cordova-plugin-splashscreen,corimf/cordova-plugin-splashscreen,Choppel/cordova-plugin-splashscreen,Choppel/cordova-plugin-splashscreen,jfrumar/cordova-plugin-splashscreen,bamlab/cordova-plugin-splashscreen,purplecabbage/cordova-plugin-splashscreen,Seedstars/cordova-plugin-splashscreen,Seedstars/cordova-plugin-splashscreen,dpolivy/cordova-plugin-splashscreen,jfrumar/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,kitmaxdevelop/cordova-plugin-splashscreen,jfrumar/cordova-plugin-splashscreen,revolunet/cordova-plugin-splashscreen,hebert-nr/spin,purplecabbage/cordova-plugin-splashscreen,dpolivy/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,kitmaxdevelop/cordova-plugin-splashscreen,corimf/cordova-plugin-splashscreen,Seedstars/cordova-plugin-splashscreen,Lazza/cordova-plugin-splashscreen,corimf/cordova-plugin-splashscreen,hebert-nr/spin,kitmaxdevelop/cordova-plugin-splashscreen,Choppel/cordova-plugin-splashscreen,Newstex/cordova-plugin-splashscreen,Lazza/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,hebert-nr/spin,Choppel/cordova-plugin-splashscreen,Panajev/cordova-plugin-splashscreen,hebert-nr/spin,bamlab/cordova-plugin-splashscreen,hebert-nr/spin,bamlab/cordova-plugin-splashscreen,dpolivy/cordova-plugin-splashscreen,jfrumar/cordova-plugin-splashscreen,Panajev/cordova-plugin-splashscreen,Newstex/cordova-plugin-splashscreen,purplecabbage/cordova-plugin-splashscreen,apache/cordova-plugin-splashscreen,purplecabbage/cordova-plugin-splashscreen,Panajev/cordova-plugin-splashscreen,corimf/cordova-plugin-splashscreen,Newstex/cordova-plugin-splashscreen,Lazza/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,Lazza/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen