boards: nxp: mimxrt1180_evk: enable lpspi3 and edma4 instance support

Add pinctrl and dma channel/mux information for lpspi3 on cm33/cm7 cores.
Set dma4 status is OK.
Add pinctrl for lpuart3

tests: driver: spi: support spi_loopback case on MIMXRT1180_EVK
Add .config/.overlay files for cm33/cm7 cores
Link to ocram1 as RAM region on cm7 core
Link to dtcm as RAM region on cm33 core

Signed-off-by: Lucien Zhao <lucien.zhao@nxp.com>