scripts: fix fixdep.c to let it workable in cygwin

Update retrun character detection in the fixdep.c
to let it work in cygwin.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Signed-off-by: Greentime <green.hu@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 1a5b10f..f27a179 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -329,7 +329,7 @@
 	clear_config();
 
 	while (m < end) {
-		while (m < end && (*m == ' ' || *m == '\\' || *m == '\n'))
+		while (m < end && (*m == ' ' || *m == '\\' || *m == '\n' || *m == '\r'))
 			m++;
 		p = m;
 		while (p < end && *p != ' ') p++;