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/ncsi.h b/libc/kernel/uapi/linux/ncsi.h
index 6b128e4..23cdf1b 100644
--- a/libc/kernel/uapi/linux/ncsi.h
+++ b/libc/kernel/uapi/linux/ncsi.h
@@ -23,6 +23,7 @@
   NCSI_CMD_PKG_INFO,
   NCSI_CMD_SET_INTERFACE,
   NCSI_CMD_CLEAR_INTERFACE,
+  NCSI_CMD_SEND_CMD,
   __NCSI_CMD_AFTER_LAST,
   NCSI_CMD_MAX = __NCSI_CMD_AFTER_LAST - 1
 };
@@ -32,6 +33,7 @@
   NCSI_ATTR_PACKAGE_LIST,
   NCSI_ATTR_PACKAGE_ID,
   NCSI_ATTR_CHANNEL_ID,
+  NCSI_ATTR_DATA,
   __NCSI_ATTR_AFTER_LAST,
   NCSI_ATTR_MAX = __NCSI_ATTR_AFTER_LAST - 1
 };