base-files: add the DEVICENAME variable for hotplug scripts

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 38861

package/base-files/files/sbin/hotplug-call

@@ -9,6 +9,7 @@ PATH=/bin:/sbin:/usr/bin:/usr/sbin
 LOGNAME=root
 USER=root
 export PATH LOGNAME USER
+export DEVICENAME="${DEVPATH##*/}"
 
 [ \! -z "$1" -a -d /etc/hotplug.d/$1 ] && {
 	for script in $(ls /etc/hotplug.d/$1/* 2>&-); do (