kbuild: additional warning fixes on Solaris 9

A coworker of mine give them a look-over and spotted a few
places where I missed changing some casts.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

scripts/basic/fixdep.c

@@ -225,10 +225,10 @@ void parse_config_file(signed char *map, size_t len)
 	signed char *p, *q;
 
 	for (; m < end; m++) {
-		if (*m == INT_CONF) { p = (char *) m  ; goto conf; }
-		if (*m == INT_ONFI) { p = (char *) m-1; goto conf; }
-		if (*m == INT_NFIG) { p = (char *) m-2; goto conf; }
-		if (*m == INT_FIG_) { p = (char *) m-3; goto conf; }
+		if (*m == INT_CONF) { p = (signed char *) m  ; goto conf; }
+		if (*m == INT_ONFI) { p = (signed char *) m-1; goto conf; }
+		if (*m == INT_NFIG) { p = (signed char *) m-2; goto conf; }
+		if (*m == INT_FIG_) { p = (signed char *) m-3; goto conf; }
 		continue;
 	conf:
 		if (p > map + len - 7)

scripts/mod/modpost.c

@@ -219,7 +219,7 @@ get_next_line(unsigned long *pos, void *file, unsigned long size)
 	static char line[4096];
 	int skip = 1;
 	size_t len = 0;
-	signed char *p = (char *)file + *pos;
+	signed char *p = (signed char *)file + *pos;
 	char *s = line;
 
 	for (; *pos < size ; (*pos)++)