external/kernel-headers: update original kernel header a1026.h

Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/original/linux/a1026.h b/original/linux/a1026.h
index 907fef4..44cdf4d 100644
--- a/original/linux/a1026.h
+++ b/original/linux/a1026.h
@@ -42,7 +42,8 @@
 	A1026_PATH_RECORD_HEADSET,
 	A1026_PATH_RECORD_SPEAKER,
 	A1026_PATH_RECORD_BT,
-	A1026_PATH_CAMCORDER
+	A1026_PATH_CAMCORDER,
+	A1026_PATH_INCALL_TTY
 };
 
 /* noise suppression states */