bashrc: export the environment variables

Change-Id: I34f35370c1d745f64a3f09abef06a58895ac8f7d
bashrc: call resize command to init term dim

With this simple command, nano and vim will use the
full size of the terminal in adb shell

Without, the default terminfo is used (80x24)

Change-Id: Ic536966b5ab18533064fc2c851497911595bc0da