added HISTFILE env variable in /etc/profile

This is necessary because otherwise the history is saved in different
files when logged in via ssh and via tty.

data/qi_lb60/files/etc/profile

@@ -9,6 +9,8 @@ export PS1='\u@\h:\w\$ '
 export SDL_NOMOUSE=1
 export SDL_VIDEODRIVER=fbcon
 
+export HISTFILE=$HOME/.ash_history
+
 [ -x /bin/more ] || alias more=less
 [ -x /usr/bin/vim ] && alias vi=vim || alias vim=vi