ve values.

This is a transitional patch, waiting for gpio_is_valid() to be
merged at which point the tests should be revisited.

Signed-off-by: Stelian Pop <stelian@popies.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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