ARM: at91: at91_dt_defconfig: remove GSPCA cameras

GSPCA cameras option was not present in previous releases so disable it
for this relase also. It is an old type of camera used befor UVC class.

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>

Author: cristibirsan

arch/arm/configs/at91_dt_defconfig

@@ -155,6 +155,7 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y
 CONFIG_MEDIA_PLATFORM_SUPPORT=y
 CONFIG_MEDIA_USB_SUPPORT=y
 CONFIG_USB_VIDEO_CLASS=m
+# CONFIG_USB_GSPCA is not set
 CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_VIDEO_ATMEL_ISI=y
 CONFIG_VIDEO_OV2640=m