gpio: drop surplus PCI and USB dependencies

The PCI/USB expander menus already depend on PCI/USB, drop subdependecies
on individual drivers.

Signed-off-by: Andrew F. Davis <afd@ti.com>
[Rebased to the GPIO tree]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 file changed