pinctrl: exynos5440: remove erroneous __init

This removes the __init notation from some of the
the exynos 5440 pin controller set-up functions. These
functions are called from probe() and as such may be
discarded before probe() completes.

Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>