Update to v4.20.1 kernel headers.

This includes one manual change:

In the file bionic/libc/kernel/uapi/linux/in.h, the macro IN_BADCLASS
was not definied correctly. Change the macro from:

  #define IN_BADCLASS(a) ((((long int) (a)) == 0xffffffff)

to:

  #define IN_BADCLASS(a) (((long int) (a)) == (long int)0xffffffff)

This change is being pushed to the upstream kernels.

Test: Builds and boots.
Change-Id: Ia304773a9dc6789b34d9769d73742384d6afb571
Merged-In: Ia304773a9dc6789b34d9769d73742384d6afb571
(cherry picked from commit 967fb01cce73591281e7804e2c0fa9f83b618f5b)
diff --git a/libc/kernel/uapi/linux/cec.h b/libc/kernel/uapi/linux/cec.h
index fd0f824..05af529 100644
--- a/libc/kernel/uapi/linux/cec.h
+++ b/libc/kernel/uapi/linux/cec.h
@@ -44,9 +44,12 @@
 #define CEC_TX_STATUS_LOW_DRIVE (1 << 3)
 #define CEC_TX_STATUS_ERROR (1 << 4)
 #define CEC_TX_STATUS_MAX_RETRIES (1 << 5)
+#define CEC_TX_STATUS_ABORTED (1 << 6)
+#define CEC_TX_STATUS_TIMEOUT (1 << 7)
 #define CEC_RX_STATUS_OK (1 << 0)
 #define CEC_RX_STATUS_TIMEOUT (1 << 1)
 #define CEC_RX_STATUS_FEATURE_ABORT (1 << 2)
+#define CEC_RX_STATUS_ABORTED (1 << 3)
 #define CEC_LOG_ADDR_INVALID 0xff
 #define CEC_PHYS_ADDR_INVALID 0xffff
 #define CEC_MAX_LOG_ADDRS 4