configs: Re-sync with CONFIG_DISTRO_DEFAULTS

A number of platforms include config_distro_defaults.h but do not enable
CONFIG_DISTRO_DEFAULTS.  As they plainly intended to, set that flag and
re-sync config files.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/gurnard_defconfig b/configs/gurnard_defconfig
index 547d68e..6c222d6 100644
--- a/configs/gurnard_defconfig
+++ b/configs/gurnard_defconfig
@@ -19,6 +19,8 @@
 CONFIG_CMD_USB=y
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
 CONFIG_CMD_FAT=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_NAND=y