If the system fetches dbus first, everything works and the checksum is
correct there. If dbus-test fetches first, the checksum is incorrect
and wasn't changed with the version upgrade.
Fix the checksum.
(From OE-Core rev: a5fc201961e62cf5d9088b6d66bb2d50aa84109d)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>