boards: nxp: add support for platform FRDM-IMX93

Add initial support for FRDM-IMX93 board

Building hello_world:
west build -p always -b frdm_imx93/mimx9352/a55 samples/hello_world

Signed-off-by: Hongbo Wang <hongbo.wang@nxp.com>
Signed-off-by: Chekhov Ma <chekhov.ma@nxp.com>