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/s5p_goni_defconfig b/configs/s5p_goni_defconfig
index 8c1438d..2e2cc2a 100644
--- a/configs/s5p_goni_defconfig
+++ b/configs/s5p_goni_defconfig
@@ -2,6 +2,7 @@
 CONFIG_ARCH_S5PC1XX=y
 CONFIG_TARGET_S5P_GONI=y
 CONFIG_DEFAULT_DEVICE_TREE="s5pc1xx-goni"
+CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Goni # "
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set