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/ls2080a_emu_defconfig b/configs/ls2080a_emu_defconfig
index 1e56c08..f9b4eac 100644
--- a/configs/ls2080a_emu_defconfig
+++ b/configs/ls2080a_emu_defconfig
@@ -10,6 +10,7 @@
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set
 # CONFIG_CMD_EDITENV is not set
+CONFIG_CMD_GREPENV=y
 # CONFIG_CMD_ENV_EXISTS is not set
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_I2C=y
@@ -18,7 +19,9 @@
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 # CONFIG_CMD_NFS is not set
+CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
 # CONFIG_CMD_MISC is not set
 CONFIG_SYS_NS16550=y
 CONFIG_OF_LIBFDT=y