Kconfig: Finish migration of hashing commands

Currently these (board agnostic) commands cannot be selected using
menuconfig and friends. Fix this the obvious way.  As part of this,
don't muddle the meaning of CONFIG_HASH_VERIFY to mean both 'hash -v'
and "we have a hashing command" as this makes the Kconfig logic odd.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
[trini: Re-apply, add imply for a few cases, run moveconfig.py, also
        migrate CRC32_VERIFY]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ea20_defconfig b/configs/ea20_defconfig
index be48626..4ee7d5a 100644
--- a/configs/ea20_defconfig
+++ b/configs/ea20_defconfig
@@ -15,6 +15,7 @@
 CONFIG_SYS_PROMPT="ea20 > "
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y
+CONFIG_CRC32_VERIFY=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y