board/common: enable unicode support with c.utf-8 locale

Set LANG=C.UTF-8 in finit.conf for system-wide coverage, in profile.d
for login shells, and in bash.bashrc for interactive shells to ensure
comprehensive Unicode support across all user interactions.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

board/common/rootfs/etc/bash.bashrc

@@ -31,6 +31,8 @@ bind "set completion-ignore-case on"
 # show all completions immediately instead of ringing bell
 bind "set show-all-if-ambiguous on"
 
+export LANG=C.UTF-8
+
 log()
 {
     local fn="/var/log/syslog"

board/common/rootfs/etc/finit.conf

@@ -1,2 +1,3 @@
 set COLORTERM=yes
-rlimit soft core infinity
+set LANG=C.UTF-8
+rlimit soft core infinity

board/common/rootfs/etc/profile.d/convenience.sh

@@ -3,6 +3,7 @@ alias la='ls -A'
 alias ll='ls -alF'
 alias ls='ls --color=auto'
 
+export LANG=C.UTF-8
 export EDITOR=/usr/bin/edit
 export VISUAL=/usr/bin/edit
 export LESS="-P %f (press h for help or q to quit)"