ti_config_fragments: multimedia.cfg: Add video encode configuration

Add vxe384 vxe_enc configurations to multimedia.cfg

Signed-off-by: Angela Stegmaier <angelabaker@ti.com>
Reviewed-by: Benoit Parrot <bparrot@ti.com>

ti_config_fragments/multimedia.cfg

@@ -5,3 +5,6 @@
 # IMG D5500 v4l2 Driver Config Options
 CONFIG_MEDIA_SUPPORT=y
 CONFIG_VIDEO_IMG_VXD_DEC=m
+
+# IMG VXE384 v4l2 Driver Config Options
+CONFIG_VIDEO_IMG_VXE_ENC=m