[media] drivers/media/platform/Kconfig: fix VIDEO_MEDIATEK_VCODEC dependency

Allow VIDEO_MEDIATEK_VCODEC to build when COMPILE_TEST is set (even
without MTK_IOMMU).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/Kconfig

@@ -168,7 +168,7 @@ config VIDEO_MEDIATEK_VPU
 
 config VIDEO_MEDIATEK_VCODEC
 	tristate "Mediatek Video Codec driver"
-	depends on MTK_IOMMU
+	depends on MTK_IOMMU || COMPILE_TEST
 	depends on VIDEO_DEV && VIDEO_V4L2
 	depends on ARCH_MEDIATEK || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG