Lack of character set support for Dzongkha keybpard layout

[Evan Wang]

$ system-image-cli -i
current build number: 17
device name: frieza
channel: ubuntu-touch/rc/bq-aquaris-pd.en
last update: 2016-09-06 22:56:42
version version: 17
version ubuntu: 20160903
version tag: OTA-13-rc
version device: 20160809.0
version custom: 20160831--42-26-vivid

Steps to reproduce:
1. BT keyboard is connected
2. Drag down the indicator for keyboard layout
3. Open Text Entry Settings link
4. Select Dzongkha layout
5. Open Libreoffice Writer to check the keyboard layout by typing each key, blank squares input

[Evan Wang (wsy324)]

As well as keyboard Bangla(India)