Update kernel uapi headers to v3.16.1.

Other changes to support the new headers:

- Remove the flock64 structure it is defined in the new headers.
- Update the syscalls to correspond with the headers.

Change-Id: I49a6b07e8b2bfffb67be71b07b58e4e6848fcc09
diff --git a/libc/kernel/uapi/linux/serial_reg.h b/libc/kernel/uapi/linux/serial_reg.h
index 1b0bada..e19cfb4 100644
--- a/libc/kernel/uapi/linux/serial_reg.h
+++ b/libc/kernel/uapi/linux/serial_reg.h
@@ -31,7 +31,7 @@
 #define UART_IIR 2
 #define UART_IIR_NO_INT 0x01
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define UART_IIR_ID 0x06
+#define UART_IIR_ID 0x0e
 #define UART_IIR_MSI 0x00
 #define UART_IIR_THRI 0x02
 #define UART_IIR_RDI 0x04