Fix leading space in DEVICE setting

Benjamin Drungrequested to merge
bdrung/live-boot:master into master

live-boot will set the DEVICE parameter in /conf/param.conf. This parameter specifies the default network interface to use, like eth0. So only one Ethernet device is allowed here, but live-boot generates a list with a leading space. For example it will set DEVICE=' eth0'. This causes initramfs script relying on DEVICE fail.

Therefore just set the DEVICE parameter to the last connected interface found.

Merge request reports