Update to v5.6 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.6

Add a new method for removing structures. This is to deal with the kernel
headers changing some definitions of timeval to __kernel_old_timeval
and itimerval to __kernel_old_itimerval. Remove the __kernel_old_XX
strutures and change the other structures to the previous definitions.

This only works so long as these structures stay the same, if they
diverge, then a different strategy will need to be implemented.

Test: Booted cuttlefish/walleye.
Test: Ran bionic-unit-tests on cuttlefish/walleye.
Change-Id: I0a61f4fa6e4155c602e0414d9b38c2e1637829af
diff --git a/libc/kernel/uapi/linux/if_bridge.h b/libc/kernel/uapi/linux/if_bridge.h
index 03cc1c4..b644ad0 100644
--- a/libc/kernel/uapi/linux/if_bridge.h
+++ b/libc/kernel/uapi/linux/if_bridge.h
@@ -115,6 +115,7 @@
 #define BRIDGE_VLAN_INFO_RANGE_BEGIN (1 << 3)
 #define BRIDGE_VLAN_INFO_RANGE_END (1 << 4)
 #define BRIDGE_VLAN_INFO_BRENTRY (1 << 5)
+#define BRIDGE_VLAN_INFO_ONLY_OPTS (1 << 6)
 struct bridge_vlan_info {
   __u16 flags;
   __u16 vid;
@@ -136,6 +137,34 @@
   __u16 flags;
   __u32 pad2;
 };
+struct bridge_stp_xstats {
+  __u64 transition_blk;
+  __u64 transition_fwd;
+  __u64 rx_bpdu;
+  __u64 tx_bpdu;
+  __u64 rx_tcn;
+  __u64 tx_tcn;
+};
+struct br_vlan_msg {
+  __u8 family;
+  __u8 reserved1;
+  __u16 reserved2;
+  __u32 ifindex;
+};
+enum {
+  BRIDGE_VLANDB_UNSPEC,
+  BRIDGE_VLANDB_ENTRY,
+  __BRIDGE_VLANDB_MAX,
+};
+#define BRIDGE_VLANDB_MAX (__BRIDGE_VLANDB_MAX - 1)
+enum {
+  BRIDGE_VLANDB_ENTRY_UNSPEC,
+  BRIDGE_VLANDB_ENTRY_INFO,
+  BRIDGE_VLANDB_ENTRY_RANGE,
+  BRIDGE_VLANDB_ENTRY_STATE,
+  __BRIDGE_VLANDB_ENTRY_MAX,
+};
+#define BRIDGE_VLANDB_ENTRY_MAX (__BRIDGE_VLANDB_ENTRY_MAX - 1)
 enum {
   MDBA_UNSPEC,
   MDBA_MDB,
@@ -212,6 +241,7 @@
   BRIDGE_XSTATS_VLAN,
   BRIDGE_XSTATS_MCAST,
   BRIDGE_XSTATS_PAD,
+  BRIDGE_XSTATS_STP,
   __BRIDGE_XSTATS_MAX
 };
 #define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1)