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/iNet_86VS_defconfig b/configs/iNet_86VS_defconfig
index 3dea793..3c4d960 100644
--- a/configs/iNet_86VS_defconfig
+++ b/configs/iNet_86VS_defconfig
@@ -13,6 +13,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="sun5i-a13-inet-86vs"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SPL=y
+CONFIG_HUSH_PARSER=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 # CONFIG_CMD_FPGA is not set