Rename cli_classic.h to a more adequate cli_getop.h

The header only defines getop related stuff so it seems more intuitive
this way.

Change-Id: Iaceeabedc26e93147d8122376d88e730aad1e355
Signed-off-by: Antonio Vázquez Blanco <antoniovazquezblanco@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/85072
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

cli_classic.c

@@ -25,7 +25,7 @@
 #include <stdbool.h>
 #include <stdlib.h>
 #include <stdint.h>
-#include <cli_classic.h>
+#include <cli_getopt.h>
 #include "flash.h"
 #include "flashchips.h"
 #include "fmap.h"

cli_getopt.c

@@ -25,12 +25,13 @@
  * SOFTWARE.
  */
 
+#include <cli_getopt.h>
+
 #include <unistd.h>
 #include <wchar.h>
 #include <string.h>
 #include <limits.h>
 #include <stdlib.h>
-#include "cli_classic.h"
 #include "flash.h"
 
 char *optarg;

include/cli_getopt.h

@@ -12,8 +12,13 @@
  * GNU General Public License for more details.
  */
 
-#ifndef CLI_CLASSIC_H
-#define CLI_CLASSIC_H
+#ifndef __CLI_GETOPT_H__
+#define __CLI_GETOPT_H__
+
+/**
+ * This header is responsible for either including a standard getop
+ * implementation header or to provide a compatible one.
+ */
 
 #ifdef HAVE_GETOPT_H
 #include <getopt.h>
@@ -40,4 +45,4 @@ int getopt_long_only (int argc, char *const *argv, const char *shortopts,
 			const struct option *longopts, int *longind);
 
 #endif /* HAVE_GETOPT_H */
-#endif /* CLI_CLASSIC_H */
+#endif /* __CLI_GETOPT_H__ */