mfvideoenc: Fix UWP build
Add missing GST_MF_HAVE_D3D11 define guard
wasapi2: Fix UWP build
KSAUDIO_SPEAKER_* defines are WINAPI_PARTITION_DESKTOP only
mfvideoenc: Fix UWP build
Add missing GST_MF_HAVE_D3D11 define guard
wasapi2: Fix UWP build
KSAUDIO_SPEAKER_* defines are WINAPI_PARTITION_DESKTOP only