hush: complete renaming CONFIG_SYS_HUSH_PARSER to CONFIG_HUSH_PARSER

There is no more define of CONFIG_SYS_HUSH_PARSER.  Rename some
remaining references and drop the backward compatible Kconfig entry.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

cmd/Kconfig

@@ -13,7 +13,6 @@ config CMDLINE
 
 config HUSH_PARSER
 	bool "Use hush shell"
-	select SYS_HUSH_PARSER
 	depends on CMDLINE
 	help
 	  This option enables the "hush" shell (from Busybox) as command line
@@ -24,11 +23,6 @@ config HUSH_PARSER
 	  If disabled, you get the old, much simpler behaviour with a somewhat
 	  smaller memory footprint.
 
-config SYS_HUSH_PARSER
-	bool
-	help
-	  Backward compatibility.
-
 config SYS_PROMPT
 	string "Shell prompt"
 	default "=> "

cmd/Makefile

@@ -49,7 +49,7 @@ obj-$(CONFIG_ENV_IS_IN_EEPROM) += eeprom.o
 obj-$(CONFIG_CMD_EEPROM) += eeprom.o
 obj-$(CONFIG_EFI_STUB) += efi.o
 obj-$(CONFIG_CMD_ELF) += elf.o
-obj-$(CONFIG_SYS_HUSH_PARSER) += exit.o
+obj-$(CONFIG_HUSH_PARSER) += exit.o
 obj-$(CONFIG_CMD_EXT4) += ext4.o
 obj-$(CONFIG_CMD_EXT2) += ext2.o
 obj-$(CONFIG_CMD_FAT) += fat.o
@@ -123,7 +123,7 @@ obj-$(CONFIG_CMD_STRINGS) += strings.o
 obj-$(CONFIG_CMD_TERMINAL) += terminal.o
 obj-$(CONFIG_CMD_TIME) += time.o
 obj-$(CONFIG_CMD_TRACE) += trace.o
-obj-$(CONFIG_SYS_HUSH_PARSER) += test.o
+obj-$(CONFIG_HUSH_PARSER) += test.o
 obj-$(CONFIG_CMD_TPM) += tpm.o
 obj-$(CONFIG_CMD_TPM_TEST) += tpm_test.o
 obj-$(CONFIG_CMD_TSI148) += tsi148.o