Update to v3.18.21 kernel headers.

Change-Id: I4ade68d62981c7f6f361750cc811e8d84be9d5b9
diff --git a/libc/kernel/uapi/linux/usbdevice_fs.h b/libc/kernel/uapi/linux/usbdevice_fs.h
index 0aa2062..285b003 100644
--- a/libc/kernel/uapi/linux/usbdevice_fs.h
+++ b/libc/kernel/uapi/linux/usbdevice_fs.h
@@ -118,61 +118,62 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define USBDEVFS_CAP_NO_PACKET_SIZE_LIM 0x04
 #define USBDEVFS_CAP_BULK_SCATTER_GATHER 0x08
+#define USBDEVFS_CAP_REAP_AFTER_DISCONNECT 0x10
 #define USBDEVFS_DISCONNECT_CLAIM_IF_DRIVER 0x01
-#define USBDEVFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
 struct usbdevfs_disconnect_claim {
   unsigned int interface;
   unsigned int flags;
-  char driver[USBDEVFS_MAXDRIVERNAME + 1];
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  char driver[USBDEVFS_MAXDRIVERNAME + 1];
 };
 struct usbdevfs_streams {
   unsigned int num_streams;
-  unsigned int num_eps;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  unsigned int num_eps;
   unsigned char eps[0];
 };
 #define USBDEVFS_CONTROL _IOWR('U', 0, struct usbdevfs_ctrltransfer)
-#define USBDEVFS_CONTROL32 _IOWR('U', 0, struct usbdevfs_ctrltransfer32)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_CONTROL32 _IOWR('U', 0, struct usbdevfs_ctrltransfer32)
 #define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer)
 #define USBDEVFS_BULK32 _IOWR('U', 2, struct usbdevfs_bulktransfer32)
 #define USBDEVFS_RESETEP _IOR('U', 3, unsigned int)
-#define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface)
 #define USBDEVFS_SETCONFIGURATION _IOR('U', 5, unsigned int)
 #define USBDEVFS_GETDRIVER _IOW('U', 8, struct usbdevfs_getdriver)
 #define USBDEVFS_SUBMITURB _IOR('U', 10, struct usbdevfs_urb)
-#define USBDEVFS_SUBMITURB32 _IOR('U', 10, struct usbdevfs_urb32)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_SUBMITURB32 _IOR('U', 10, struct usbdevfs_urb32)
 #define USBDEVFS_DISCARDURB _IO('U', 11)
 #define USBDEVFS_REAPURB _IOW('U', 12, void *)
 #define USBDEVFS_REAPURB32 _IOW('U', 12, __u32)
-#define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *)
 #define USBDEVFS_REAPURBNDELAY32 _IOW('U', 13, __u32)
 #define USBDEVFS_DISCSIGNAL _IOR('U', 14, struct usbdevfs_disconnectsignal)
 #define USBDEVFS_DISCSIGNAL32 _IOR('U', 14, struct usbdevfs_disconnectsignal32)
-#define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
 #define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
 #define USBDEVFS_CONNECTINFO _IOW('U', 17, struct usbdevfs_connectinfo)
 #define USBDEVFS_IOCTL _IOWR('U', 18, struct usbdevfs_ioctl)
-#define USBDEVFS_IOCTL32 _IOWR('U', 18, struct usbdevfs_ioctl32)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_IOCTL32 _IOWR('U', 18, struct usbdevfs_ioctl32)
 #define USBDEVFS_HUB_PORTINFO _IOR('U', 19, struct usbdevfs_hub_portinfo)
 #define USBDEVFS_RESET _IO('U', 20)
 #define USBDEVFS_CLEAR_HALT _IOR('U', 21, unsigned int)
-#define USBDEVFS_DISCONNECT _IO('U', 22)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_DISCONNECT _IO('U', 22)
 #define USBDEVFS_CONNECT _IO('U', 23)
 #define USBDEVFS_CLAIM_PORT _IOR('U', 24, unsigned int)
 #define USBDEVFS_RELEASE_PORT _IOR('U', 25, unsigned int)
-#define USBDEVFS_GET_CAPABILITIES _IOR('U', 26, __u32)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define USBDEVFS_GET_CAPABILITIES _IOR('U', 26, __u32)
 #define USBDEVFS_DISCONNECT_CLAIM _IOR('U', 27, struct usbdevfs_disconnect_claim)
 #define USBDEVFS_ALLOC_STREAMS _IOR('U', 28, struct usbdevfs_streams)
 #define USBDEVFS_FREE_STREAMS _IOR('U', 29, struct usbdevfs_streams)
-#endif
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif