Add minKeyboardHeight attribute to Keyboard layout

java/res/values-land/dimens.xml

java/res/values/attrs.xml

java/res/values/dimens.xml

java/res/xml-ar/kbd_qwerty.xml

java/res/xml-cs/kbd_qwerty.xml

java/res/xml-da/kbd_qwerty.xml

java/res/xml-de/kbd_qwerty.xml

java/res/xml-fi/kbd_qwerty.xml

java/res/xml-fr-rCA/kbd_qwerty.xml

java/res/xml-fr-rCH/kbd_qwerty.xml

java/res/xml-fr/kbd_qwerty.xml

java/res/xml-hu/kbd_qwerty.xml

java/res/xml-iw/kbd_qwerty.xml

java/res/xml-nb/kbd_qwerty.xml

java/res/xml-ru/kbd_qwerty.xml

java/res/xml-sr/kbd_qwerty.xml

java/res/xml-sv/kbd_qwerty.xml

java/res/xml-xlarge/kbd_number.xml

java/res/xml-xlarge/kbd_phone.xml

java/res/xml-xlarge/kbd_phone_symbols.xml