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/mcx_defconfig b/configs/mcx_defconfig
index 9c9d51a..5a9247a 100644
--- a/configs/mcx_defconfig
+++ b/configs/mcx_defconfig
@@ -3,6 +3,7 @@
 CONFIG_TARGET_MCX=y
 CONFIG_SPL=y
 CONFIG_FIT=y
+CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="mcx # "
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
@@ -11,7 +12,7 @@
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SYS_NS16550=y
-CONFIG_OF_LIBFDT=y
 CONFIG_USB=y
-CONFIG_USB_ULPI=y
 CONFIG_USB_ULPI_VIEWPORT_OMAP=y
+CONFIG_USB_ULPI=y
+CONFIG_OF_LIBFDT=y