community/linux-edge: Enable CONFIG_DRM_HYPERV for linux-edge-virt
Sets CONFIG_DRM_HYPERV=m to enable the new hyperv_drm video driver, merged into kernel 3.14 to replace hyperv_fb.
This would be highly beneficial to be available for evaluation when running Alpine on Hyper-V/Azure hosts.
Reference: https://www.phoronix.com/scan.php?page=news_item&px=Microsoft-Hyper-V-DRM-Driver
Edited by Kaelan Thijs Fouwels