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/s5pc210_universal_defconfig b/configs/s5pc210_universal_defconfig
index d91b433..bd2675f 100644
--- a/configs/s5pc210_universal_defconfig
+++ b/configs/s5pc210_universal_defconfig
@@ -2,6 +2,7 @@
 CONFIG_ARCH_EXYNOS=y
 CONFIG_TARGET_S5PC210_UNIVERSAL=y
 CONFIG_DEFAULT_DEVICE_TREE="exynos4210-universal_c210"
+CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Universal # "
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set