ARM: exynos_defconfig: Enable NFS v4.1 and v4.2

NFS is widely used in debugging and Continuous Integration systems, so
enable the newest versions of protocol: v4.1 and v4.2.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/configs/exynos_defconfig

@@ -322,6 +322,8 @@ CONFIG_CRAMFS=y
 CONFIG_ROMFS_FS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V4=y
+CONFIG_NFS_V4_1=y
+CONFIG_NFS_V4_2=y
 CONFIG_ROOT_NFS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ASCII=y