boards: nxp: Switch MCUBoot FW Update mode to Swap & Move

Switch the default MCUBoot FW Update mode from Swap & Scratch
to more preferable Swap & Move for the rest of NXP MCUs.
Other NXP MCU platforms have been already switched.
Delete the scratch partition. Save RAM & ROM.
Slot 0 has one additional sector, for use with
the swap move algorithm.

Signed-off-by: Andrej Butok <andrey.butok@nxp.com>