configs: Re-sync almost all of cmd/Kconfig

This syncs up the current cmd/Kconfig and include/configs/ files with the
only exception being CMD_NAND.  Due to how we have used this historically
we need to take further care here when converting.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/M5253DEMO_defconfig b/configs/M5253DEMO_defconfig
index c4da196..8c4678b 100644
--- a/configs/M5253DEMO_defconfig
+++ b/configs/M5253DEMO_defconfig
@@ -2,3 +2,4 @@
 CONFIG_TARGET_M5253DEMO=y
 CONFIG_SYS_TEXT_BASE=0xFF800000
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_PING=y