package/wpewebkit: fix compile without video support

Fixes:

  - https://bugs.busybox.net/show_bug.cgi?id=13306



      .../wpewebkit-2.30.2/Source/WebKit/WebProcess/InjectedBundle/InjectedBundle.cpp:242:30: error: ‘class WebCore::Settings’ has no member named ‘setGenericCueAPIEnabled’; did you mean ‘setBeaconAPIEnabled’?
                   page->settings().setGenericCueAPIEnabled(enabled);
                                    ^~~~~~~~~~~~~~~~~~~~~~~
                                    setBeaconAPIEnabled

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>