ARM: mvebu: Enable nfsroot in the defconfig

NFSroot is very frequently used by developers to boot, so let's make
our lives simpler and enable it by default.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Link: https://lkml.kernel.org/r/1396539014-8673-1-git-send-email-ezequiel.garcia@free-electrons.comSigned-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/configs/mvebu_v7_defconfig

@@ -29,6 +29,9 @@ CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_VFP=y
 CONFIG_NET=y
 CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
 CONFIG_BT=y
 CONFIG_BT_MRVL=y
 CONFIG_BT_MRVL_SDIO=y
@@ -103,6 +106,8 @@ CONFIG_UDF_FS=m
 CONFIG_MSDOS_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_ROOT_NFS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_CODEPAGE_850=y
 CONFIG_NLS_ISO8859_1=y