arm: tegra: tec-ng: Fix the gpio_request() for the PCIe and SATA power

Change-Id: I780c82d2beeabc587a445cfd5ce9f0a0bec593d7
Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Reviewed-on: http://review.adnet.avionic-design.de/230
Reviewed-by: Soeren Grunewald <soeren.grunewald@avionic-design.de>
Reviewed-by: Julian Scheel <julian.scheel@avionic-design.de>