ASoC: cs4271: configure reset GPIO as output

During reset "refactoring" the output configuration was lost.
This commit repairs sound on EDB93XX boards.

Fixes: 9a397f47 ("ASoC: cs4271: add regulator consumer support")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org> # 4.6+