dts: arm: nxp: fix mimxrt1024 flash configuration
dts: arm: nxp: fix mimxrt1024 flash configuration

add correct binding, fix size to 32MBit, add erase and write
block size to support mcuboot and rename to reflect the actual
flash model.

Signed-off-by: Mikkel Jakobsen <31215e1a25e10d3f738438d78f8193ee267dd757@prevas.dk>

zephyrproject-rtos/zephyr,finikorg/zephyr,galak/zephyr,finikorg/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr