soc: arm: nxp_imx: add FLEXSPI1 and FLEXSPI2 memory sections for RT5xx

Add FLEXSPI1 and FLEXSPI2 memory sections for RT5xx SOC. These sections
can be used by the user's application as part of a custom linker script,
if the application needs to relocate a buffer to external SRAM connected
to FLEXSPI1 or FLEXSPI2

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
1 file changed