initial buildroot for linux 5.15

package/luaposix/Config.in

@@ -0,0 +1,14 @@
+config BR2_PACKAGE_LUAPOSIX
+	bool "luaposix"
+	# "bit32" is included in Lua 5.2+. luajit has an equivalent
+	# "bit" module, but since it has a different name, luaposix
+	# doesn't find it.
+	select BR2_PACKAGE_LUA_BIT32 if BR2_PACKAGE_LUAINTERPRETER_ABI_VERSION_5_1 # runtime
+	help
+	  This is a POSIX binding for LuaJIT, Lua 5.1 through 5.4;
+	  like most libraries it simply binds to C APIs on the
+	  underlying system, so it won't work on non-POSIX systems.
+	  However, it does try to detect the level of POSIX conformance
+	  of the underlying system and bind only available APIs.
+
+	  https://github.com/luaposix/luaposix