Enable USB webcam uvc driver

The uvc driver is installed as a module

Change-Id: I8d90b3e38b92fa5b3dae4ef9385d7510fe81fa3a
diff --git a/debian/defconfig b/debian/defconfig
index df3f0d5..88f2c43 100644
--- a/debian/defconfig
+++ b/debian/defconfig
@@ -417,3 +417,5 @@
 CONFIG_SND_SOC_MT6392_CODEC=y
 CONFIG_TYPEC=y
 CONFIG_TYPEC_MT6392=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_USB_VIDEO_CLASS=m