Patches added in 'meta-swupdate' (backported from U-Boot) broke our
layer. We also had those patches, so remove them and make sure the
rest or our patches are applied after the ones from 'meta-swupdate'
by using an anonymous python function instead of appending to the
SRC_URI variable.
Signed-off-by: Javier Viguera <javier.viguera@digi.com>
Javier Viguera