ecore_drm2: Allow non-pci DRM devices to be selected

ecore_drm2: Allow non-pci DRM devices to be selected

Summary: This is a tweak to c264ef264f0936632a1603fef45c59a50369631d for D5712 . chosen_dev in the loop was only being set for DRM devices attached to PCI devices. While this is useful for determining if the device is the preferred boot_vga device, There is no apparent requirement (comparing to Weston) for all DRM devices to be attached to a PCI device. (This is considering USB DisplayLink devices. I am not sure how the parent device tree is with these...)

Reviewers: devilhorns, ManMower

Reviewed By: devilhorns, ManMower

Subscribers: cedric, jpeg, #efl

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D5727