Introduce k3-am62-lp-sk-nand.dtso overlay file to support
the X8 NAND EXPANSION BOARD card (PROC143E1) for AM62x LP SK
board. NAND has partitions for different boot components as
below:
0x000000000000-0x000000200000 : "NAND.tiboot3
0x000000200000-0x000000400000 : "NAND.tispl
0x000000400000-0x000000600000 : "NAND.tiboot3.backup
0x000000600000-0x000000a00000 : "NAND.u-boot
0x000000a00000-0x000000a40000 : "NAND.u-boot-env
0x000000a40000-0x000000a80000 : "NAND.u-boot-env.backup
0x000000a80000-0x000040000000 : "NAND.file-system
Disable mcasp1 node in DT to avoid pinmux conflict. Update
Makefile to include k3-am62-lp-sk-nand.dtso.
Signed-off-by: Nitin Yadav <n-yadav@xxxxxx>