rpi-default-versions: move back to kernel 4.14
rpi-default-versions: move back to kernel 4.14

Current 4.19 does not boot - last thing I see on serial console is:

| Welcome to Mortsgna v0.1!
|
| [    2.912214] systemd[1]: Set hostname to <raspberrypi3>.
| [    2.913059] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
| [    2.943796] random: systemd: uninitialized urandom read (16 bytes read)
| [    2.950507] systemd[1]: Initializing machine ID from random generator.
| [    2.957357] systemd[1]: Installed transient /etc/machine-id file.
| [    3.009613] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00, bcdDevice= 2.00
| [    3.018032] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
| [    3.030187] smsc95xx v1.0.6

Tried without 0001-usb-dwc_otg-fix-system-lockup-when-interrupts-are-th.patch - same

Signed-off-by: Andreas Müller <d72a15aaaca3a7afa855175c72dc8d2e05931e32@gmail.com>

schnitzeltony/meta-raspi-light,schnitzeltony/meta-raspi-light