69

default.xml: update meta-lmp layer

Relevant changes:
- e87487c base: add wireguard module 20200506 and tools 20200513
- fa00609 base: lmp: add ptest to distro features
- 6c6d0d7 base: ostree: disable ptest
- 479675d base: linux-lmp: bump kernel to 5.4.41
- e5db43b bsp: lmp-machine-custom: rpi: bump kernel to 4.19.120
- 3248e55 base: fioconfig: bump to f12c870
- 35cd5f3 base: aktualizr-lite: bump to 5e72380

Signed-off-by: Ricardo Salveti <ricardo@foundries.io>