project:cfg:BoardConfig_IPC:overlay:Add a lightweight overlay for Buildroot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>

project/cfg/BoardConfig_IPC/overlay/overlay-luckfox-buildroot-tiny/etc/profile

@@ -0,0 +1,24 @@
+export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
+
+export EDITOR='/bin/vi'
+
+#export PS1='[\u@\h \W]# '
+if [ "$PS1" ]; then
+	if [ "`id -u`" -eq 0 ]; then
+		#export PS1='# '
+    export PS1='[\u@\h \W]# '
+	else
+		#export PS1='$ '
+    export PS1='[\u@\h \W]$ '
+	fi
+fi
+
+# Source configuration files from /etc/profile.d
+for i in /etc/profile.d/*.sh ; do
+        if [ -r "$i" ]; then
+                . $i
+        fi
+done
+unset i
+
+