dfu-util: 0.7 -> 0.8

Upgrade dfu-util from 0.7 to 0.8.

Modify SRC_URI,since the original one can‘t be opened.
Modify 0001-configure.ac-Don-t-check-for-usbpath.patch,since the datas has been changed.

Signed-off-by: Li Xin <lixin.fnst@cn.fujitsu.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>