ARM: configs: at91: sama7: enable CONFIG_RESET_CONTROLLER

Enable CONFIG_RESET_CONTROLLER. It is necessary for resetting individual
in SoC devices.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220408080031.2527232-11-claudiu.beznea@microchip.com