androdeb: fix incorrect home directory variable

The following command fails on androdeb.

The output looks like:
curl https://sh.rustup.rs -sSf | sh
info: downloading installer
error: $HOME differs from euid-obtained home directory: you may be using sudo
error: if this is what you want, restart the installation with `-y'

This is because home directory wasn't set.

Signed-off-by: Joel Fernandes <joel@joelfernandes.org>
diff --git a/addons/bashrc b/addons/bashrc
index 815ca70..30c1388 100644
--- a/addons/bashrc
+++ b/addons/bashrc
@@ -16,3 +16,7 @@
 touch .banner.shown
 
 fi
+
+homedir=$( getent passwd "$USER" | cut -d: -f6 )
+export HOME=$homedir
+cd $HOME
diff --git a/addons/bashrc.silent b/addons/bashrc.silent
index c49f02e..95f23f0 100644
--- a/addons/bashrc.silent
+++ b/addons/bashrc.silent
@@ -1 +1,5 @@
 source .bashrc.common
+
+homedir=$( getent passwd "$USER" | cut -d: -f6 )
+export HOME=$homedir
+cd $HOME