modules: hal_nxp: set SDK-NG as unsupported for imx95's cm7

The new SDK-NG is missing some EDMA-related headers/drivers because of
which the 'dma_nxp_edma' driver no longer compiles with it. Mark the new
SDK as unsupported for this platform until this is fixed.

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>