Add config flag for sam9x7 SoC.
Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20240729070916.1991370-1-varshini.rajendran@microchip.comSigned-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>