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/P4080DS_SRIO_PCIE_BOOT_defconfig b/configs/P4080DS_SRIO_PCIE_BOOT_defconfig
index baf548e..3aebc39 100644
--- a/configs/P4080DS_SRIO_PCIE_BOOT_defconfig
+++ b/configs/P4080DS_SRIO_PCIE_BOOT_defconfig
@@ -6,6 +6,7 @@
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
 CONFIG_SYS_EXTRA_OPTIONS="SRIO_PCIE_BOOT_SLAVE,SYS_TEXT_BASE=0xFFF40000"
+CONFIG_HUSH_PARSER=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_SPI_FLASH=y