kbuild: move ".config not found!" message from Kconfig to Makefile

# because some architectures define CROSS_COMPILE there.

-include include/config/auto.conf.cmd

# To avoid any implicit rule to kick in, define an empty command

$(KCONFIG_CONFIG): ;

$(KCONFIG_CONFIG):

	@echo >&2 '***'

	@echo >&2 '*** Configuration file "$@" not found!'

	@echo >&2 '***'

	@echo >&2 '*** Please run some configurator (e.g. "make oldconfig" or'

	@echo >&2 '*** "make menuconfig" or "make xconfig").'

	@echo >&2 '***'

	@/bin/false

# The actual configuration files used during the build are stored in

# include/generated/ and include/config/. Update them if .config is newer than

	const char *progname = av[0];

	int opt;

	const char *name, *defconfig_file = NULL /* gcc uninit */;

	struct stat tmpstat;

	int no_conf_write = 0;

	tty_stdio = isatty(0) && isatty(1);

	name = av[optind];

	conf_parse(name);

	//zconfdump(stdout);

	if (sync_kconfig) {

		name = conf_get_configname();

		if (stat(name, &tmpstat)) {

			fprintf(stderr, "***\n"

				"*** Configuration file \"%s\" not found!\n"

				"***\n"

				"*** Please run some configurator (e.g. \"make oldconfig\" or\n"

				"*** \"make menuconfig\" or \"make xconfig\").\n"

				"***\n", name);

			exit(1);

		}

	}

	switch (input_mode) {

	case defconfig: