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/BSC9132QDS_SPIFLASH_DDRCLK133_defconfig b/configs/BSC9132QDS_SPIFLASH_DDRCLK133_defconfig
index 7ceec10..a40bd6c 100644
--- a/configs/BSC9132QDS_SPIFLASH_DDRCLK133_defconfig
+++ b/configs/BSC9132QDS_SPIFLASH_DDRCLK133_defconfig
@@ -6,6 +6,7 @@
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
 CONFIG_SYS_EXTRA_OPTIONS="BSC9132QDS,SPIFLASH,SYS_CLK_100_DDR_133"
+CONFIG_HUSH_PARSER=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_NETDEVICES=y