ti_config_fragments: enable DRM legacy mode
GPU driver needs DRM legacy mmap APIs. Enable DRM legacy and VM config
options but do not include any legacy drivers.
Signed-off-by: Anand Balagopalakrishnan <anandb@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
[praneeth@ti.com: rebase from graphics-ti-linux-4.14.y]
Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>