GTA04: twl6040 test/demo improved

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
DSS: added boe panel driver (made from ssd2858 driver)

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Pyra DT: separated SSD2858 and BOE panel device tree variants so that we can more easily switch

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
GTA04 defconfig: added BOE panel driver module

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
DSS: added panel drivers to makefile and kconfig

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Pyra DT: added pyra+dss

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
DSS: improved panel drivers

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
GTA04 tools: fixed panelselect to handle new alternatives

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
ssd2858: disabled the stress test loop

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>