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/xilinx-ppc440-generic_defconfig b/configs/xilinx-ppc440-generic_defconfig
index 4f814a6..ab0ea5a 100644
--- a/configs/xilinx-ppc440-generic_defconfig
+++ b/configs/xilinx-ppc440-generic_defconfig
@@ -7,10 +7,12 @@
 CONFIG_SYS_EXTRA_OPTIONS="SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1"
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="board:/# "
+CONFIG_CMD_ASKENV=y
 CONFIG_LOOPW=y
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
 CONFIG_OF_EMBED=y
 CONFIG_NETCONSOLE=y
 CONFIG_SYS_NS16550=y