Mark the "big y displacement" case as a jumpstitch too

Another case pointed out by Trever and missed in his first patch.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/pes.c b/pes.c
index 18f90a8..d630350 100644
--- a/pes.c
+++ b/pes.c
@@ -246,6 +246,7 @@
 			/* Signed 12-bit arithmetic */
 			if (val2 & 2048)
 				val2 -= 4096;
+			jumpstitch = 1;
 		} else {
 			if (val2 & 64)
 				val2 -= 128;