ARM: exynos_defconfig: Enable NLS_UTF8 and some crypto algorithms

Enable useful, but not essential components:
 - NLS_UTF8, it might be used for accessing Microsoft-FS based storages,
 - popular crypto algorithms and transformations as modules.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>