properly device deferred probing for the reset_gpio since mmc2 may be probed earlier than the tca6507 on a GTA04 board

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
made bootargs a little more flexible

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
finally made tca8418 driver load from DT definitions
including some comments how the loading mechanism works
and which names must be set in which way

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
some improvements for the Pyra devioce tree

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
fixed EHCI and internal USB port for access to GTA04 UMTS modem

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