Build - roomservice: python3 support

Change-Id: I22939ded1bc93fea48e35b01a73cc64ed386b13e
Signed-off-by: STELIX <ssspinni@gmail.com>
Build - Disable dataroaming by default

The property is removed so that the property in vendor/cm can
take effect

Change-Id: Ifd7215b4f46a538e0b33fc331e5c5115f4d191b1
Signed-off-by: STELIX <ssspinni@gmail.com>