Enable -Wshadow, clean code for that

This is not just for fun. We hit a real bug on BSD with the outl macros.
The macro variable tmp collided with the tmp from outer scope.

second revision, now also taking care of inb/inw/inl. While that shadowing
did not introduce bugs (yet), of course it breaks the build on BSD when
-Wshadow is enabled.

Corresponding to flashrom svn r860.

Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
Acked-by: Luc Verhaegen <libv@skynet.be>

cli_classic.c

@@ -150,7 +150,6 @@ int cli_classic(int argc, char *argv[])
 
 	if (argc > 1) {
 		/* Yes, print them. */
-		int i;
 		printf_debug("The arguments are:\n");
 		for (i = 1; i < argc; ++i)
 			printf_debug("%s\n", argv[i]);