configs: Re-sync HUSH options

Move all cases of CONFIG_SYS_HUSH_PARSER out of the config.h files.  Remove
all cases of CONFIG_SYS_PROMPT_HUSH_PS2 as everyone uses the default.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/origen_defconfig b/configs/origen_defconfig
index de4a816..9b85b0e 100644
--- a/configs/origen_defconfig
+++ b/configs/origen_defconfig
@@ -3,6 +3,7 @@
 CONFIG_TARGET_ORIGEN=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos4210-origen"
 CONFIG_SPL=y
+CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="ORIGEN # "
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set