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/bct-brettl2_defconfig b/configs/bct-brettl2_defconfig
index 7cc0e4e..bd0acfa 100644
--- a/configs/bct-brettl2_defconfig
+++ b/configs/bct-brettl2_defconfig
@@ -1,5 +1,6 @@
 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BCT_BRETTL2=y
+CONFIG_HUSH_PARSER=y
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_NET_RANDOM_ETHADDR=y