This problem shows up on the "Multimedia support" page of make menuconfig. If one does a search for VIDEO_CAPTURE_DRIVERS (using /VIDEO_CAPTURE_DRIVERS) in make menuconfig, the dependency on CONFIG_VIDEO_DEV does not show up. Also if you do a search on any of the video capture devices, this dependency does not show up, even though it is required in order to be able to select any of the video capture devices from make menuconfig. The video capture adapters option will be missing from menuconfig, unless M is chosen next to "Video For Linux". Video for Linux help says the symbol is VIDEO_DEV. However, the symbol in .config is actually CONFIG_VIDEO_DEV. Note that if you get help on Enable Video For Linux API 1 (Deprecated), it says that it depends on VIDEO_DEV. If you select help on Video Capture Drivers from this same page, there is no dependency listed on VIDEO_DEV or CONFIG_VIDEO_DEV, but the option disappears if you do not select Video for Linux. When I enter CONFIG_VIDEO_DEV=m into the .config file, Video Capture Drivers appear as a selection. If I remove this line, there is no option for Video Capture Drivers on the Multimedia support page.
Patch submitted upstream, I'm working with upstream to get this merged. Thanks for reporting.