drm/debugfs: Add internal client debugfs file

Print the names of the internal clients currently attached.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-6-noralf@tronnes.org


Patch-mainline: 20180703160354.59955-6-noralf@tronnes.org @ 03/07/18, 04:03 p.m.

Change-Id: I59ab9d56a82ddd4c4727a74dc48d9a3c8a222ae9
Signed-off-by: Shubham Talekar <stalek@codeaurora.org>