update rt6xx series sram mapping to skip 0x180000, reserved for DSP usage. this fixes tests/subsys/debug/coredump for this board Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
Add DTS file to support secure and non-secure access Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>