drm/zte: Don't select DRM_KMS_FB_HELPER

drm/zte: Don't select DRM_KMS_FB_HELPER

BugLink: https://bugs.launchpad.net/bugs/1939450
[ Upstream commit a50e74bec1d17e95275909660c6b43ffe11ebcf0 ]

Selecting DRM_FBDEV_EMULATION will include the correct settings for
fbdev emulation. Drivers should not override this.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210415110040.23525-4-tzimmermann@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>