ARM: configs: at91: sama7: enable config for atmel maxtouch

Add config support to enable maxtouch capacitive touchscreen

Signed-off-by: Romain Sioen <romain.sioen@microchip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20260225085430.480052-6-manikandan.m@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Author: Romain Sioen

arch/arm/configs/sama7_defconfig

@@ -108,6 +108,8 @@ CONFIG_CAN_M_CAN_PLATFORM=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_TOUCHSCREEN_ATMEL_MXT=y
 CONFIG_LEGACY_PTY_COUNT=4
 CONFIG_SERIAL_ATMEL=y
 CONFIG_SERIAL_ATMEL_CONSOLE=y