ARM: configs: at91_dt: resync with media changes

The media tree Kconfig has changed recently, and a lot of modules were
built unintentionally, like the dvb frontends and encoders.
Resync the defconfig to build the ISI drivers and tested sensors.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201029121223.871531-1-eugen.hristev@microchip.com

arch/arm/configs/at91_dt_defconfig

@@ -124,9 +124,14 @@ CONFIG_MFD_ATMEL_HLCDC=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_MEDIA_SUPPORT=y
+CONFIG_MEDIA_SUPPORT_FILTER=y
+# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
 CONFIG_MEDIA_CAMERA_SUPPORT=y
+CONFIG_MEDIA_PLATFORM_SUPPORT=y
 CONFIG_V4L_PLATFORM_DRIVERS=y
 CONFIG_VIDEO_ATMEL_ISI=y
+CONFIG_VIDEO_OV2640=m
+CONFIG_VIDEO_MT9V032=m
 CONFIG_DRM=y
 CONFIG_DRM_ATMEL_HLCDC=y
 CONFIG_DRM_PANEL_SIMPLE=y