Move all to deprecated folder.

deprecated/firmware/buildroot/package/elf2flt/Config.in.host

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+config BR2_PACKAGE_HOST_ELF2FLT
+	bool "Enable elf2flt support?"
+	depends on BR2_arm || BR2_sh || BR2_sparc
+	depends on !BR2_USE_MMU
+	help
+	  uCLinux uses a Binary Flat format commonly known as BFLT. It
+	  is a relatively simple and lightweight executable format
+	  based on the original a.out format.
+
+	  This option compiles the required tools and makes the required
+	  modifications on your toolchain (linker).

deprecated/firmware/buildroot/package/elf2flt/elf2flt.mk

@@ -0,0 +1,32 @@
+################################################################################
+#
+# elf2flt
+#
+################################################################################
+
+ELF2FLT_VERSION = f859213b18a67fcfc09961267e0a1122d35186f4
+ELF2FLT_SITE = http://cgit.openadk.org/cgi/cgit/elf2flt.git
+ELF2FLT_SITE_METHOD = git
+ELF2FLT_LICENSE = GPLv2+
+ELF2FLT_LICENSE_FILES = LICENSE.TXT
+
+HOST_ELF2FLT_DEPENDENCIES = host-binutils host-zlib
+
+# It is not exactly a host variant, but more a cross variant, which is
+# why we pass a special --target option.
+HOST_ELF2FLT_CONF_OPTS = \
+	--with-bfd-include-dir=$(HOST_BINUTILS_DIR)/bfd/ \
+	--with-binutils-include-dir=$(HOST_BINUTILS_DIR)/include/ \
+	--with-libbfd=$(HOST_BINUTILS_DIR)/bfd/libbfd.a \
+	--with-libiberty=$(HOST_BINUTILS_DIR)/libiberty/libiberty.a \
+	--target=$(GNU_TARGET_NAME)
+
+HOST_ELF2FLT_LIBS = -lz
+
+ifeq ($(BR2_GCC_ENABLE_LTO),y)
+HOST_ELF2FLT_LIBS += -ldl
+endif
+
+HOST_ELF2FLT_CONF_ENV = LIBS="$(HOST_ELF2FLT_LIBS)"
+
+$(eval $(host-autotools-package))