On Fedora systems (and likely others), ifconfig returns interface
names that end with a colon. Make sure we strip the colon off the
tap device name before using it.
This fixes [YOCTO #3028]
(From OE-Core rev: 85ed217b603a86113dda11d952850e8ceed30795)
Signed-off-by: Scott Garman <scott.a.garman@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>