configs: Re-sync with cmd/Kconfig

Update the config.h and defconfig files for the commands that 8e3c036
converted over to Kconfig

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/grasshopper_defconfig b/configs/grasshopper_defconfig
index 8dc1b63..25b9c4e 100644
--- a/configs/grasshopper_defconfig
+++ b/configs/grasshopper_defconfig
@@ -7,6 +7,7 @@
 CONFIG_AUTOBOOT_DELAY_STR="d"
 CONFIG_AUTOBOOT_STOP_STR=" "
 # CONFIG_CMD_ELF is not set
+CONFIG_CMD_ASKENV=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y