Update to v4.19 kernel headers.

Test: Builds and boots.
Change-Id: I99a9ed79666e143b47f02ca4e59eed94f69b7e4a
(cherry picked from commit a981e2e52e2e95a65fa9c9b6fb16dcb4c83dd576)
diff --git a/libc/kernel/uapi/linux/pkt_sched.h b/libc/kernel/uapi/linux/pkt_sched.h
index a3f2adf..4efbc1c 100644
--- a/libc/kernel/uapi/linux/pkt_sched.h
+++ b/libc/kernel/uapi/linux/pkt_sched.h
@@ -87,6 +87,10 @@
 struct tc_fifo_qopt {
   __u32 limit;
 };
+#define SKBPRIO_MAX_PRIORITY 64
+struct tc_skbprio_qopt {
+  __u32 limit;
+};
 #define TCQ_PRIO_BANDS 16
 #define TCQ_MIN_PRIO_BANDS 2
 struct tc_prio_qopt {
@@ -407,6 +411,7 @@
   TCA_NETEM_LATENCY64,
   TCA_NETEM_JITTER64,
   TCA_NETEM_SLOT,
+  TCA_NETEM_SLOT_DIST,
   __TCA_NETEM_MAX,
 };
 #define TCA_NETEM_MAX (__TCA_NETEM_MAX - 1)
@@ -442,6 +447,8 @@
   __s64 max_delay;
   __s32 max_packets;
   __s32 max_bytes;
+  __s64 dist_delay;
+  __s64 dist_jitter;
 };
 enum {
   NETEM_LOSS_UNSPEC,
@@ -703,4 +710,122 @@
   __TCA_CBS_MAX,
 };
 #define TCA_CBS_MAX (__TCA_CBS_MAX - 1)
+struct tc_etf_qopt {
+  __s32 delta;
+  __s32 clockid;
+  __u32 flags;
+#define TC_ETF_DEADLINE_MODE_ON BIT(0)
+#define TC_ETF_OFFLOAD_ON BIT(1)
+};
+enum {
+  TCA_ETF_UNSPEC,
+  TCA_ETF_PARMS,
+  __TCA_ETF_MAX,
+};
+#define TCA_ETF_MAX (__TCA_ETF_MAX - 1)
+enum {
+  TCA_CAKE_UNSPEC,
+  TCA_CAKE_PAD,
+  TCA_CAKE_BASE_RATE64,
+  TCA_CAKE_DIFFSERV_MODE,
+  TCA_CAKE_ATM,
+  TCA_CAKE_FLOW_MODE,
+  TCA_CAKE_OVERHEAD,
+  TCA_CAKE_RTT,
+  TCA_CAKE_TARGET,
+  TCA_CAKE_AUTORATE,
+  TCA_CAKE_MEMORY,
+  TCA_CAKE_NAT,
+  TCA_CAKE_RAW,
+  TCA_CAKE_WASH,
+  TCA_CAKE_MPU,
+  TCA_CAKE_INGRESS,
+  TCA_CAKE_ACK_FILTER,
+  TCA_CAKE_SPLIT_GSO,
+  __TCA_CAKE_MAX
+};
+#define TCA_CAKE_MAX (__TCA_CAKE_MAX - 1)
+enum {
+  __TCA_CAKE_STATS_INVALID,
+  TCA_CAKE_STATS_PAD,
+  TCA_CAKE_STATS_CAPACITY_ESTIMATE64,
+  TCA_CAKE_STATS_MEMORY_LIMIT,
+  TCA_CAKE_STATS_MEMORY_USED,
+  TCA_CAKE_STATS_AVG_NETOFF,
+  TCA_CAKE_STATS_MIN_NETLEN,
+  TCA_CAKE_STATS_MAX_NETLEN,
+  TCA_CAKE_STATS_MIN_ADJLEN,
+  TCA_CAKE_STATS_MAX_ADJLEN,
+  TCA_CAKE_STATS_TIN_STATS,
+  TCA_CAKE_STATS_DEFICIT,
+  TCA_CAKE_STATS_COBALT_COUNT,
+  TCA_CAKE_STATS_DROPPING,
+  TCA_CAKE_STATS_DROP_NEXT_US,
+  TCA_CAKE_STATS_P_DROP,
+  TCA_CAKE_STATS_BLUE_TIMER_US,
+  __TCA_CAKE_STATS_MAX
+};
+#define TCA_CAKE_STATS_MAX (__TCA_CAKE_STATS_MAX - 1)
+enum {
+  __TCA_CAKE_TIN_STATS_INVALID,
+  TCA_CAKE_TIN_STATS_PAD,
+  TCA_CAKE_TIN_STATS_SENT_PACKETS,
+  TCA_CAKE_TIN_STATS_SENT_BYTES64,
+  TCA_CAKE_TIN_STATS_DROPPED_PACKETS,
+  TCA_CAKE_TIN_STATS_DROPPED_BYTES64,
+  TCA_CAKE_TIN_STATS_ACKS_DROPPED_PACKETS,
+  TCA_CAKE_TIN_STATS_ACKS_DROPPED_BYTES64,
+  TCA_CAKE_TIN_STATS_ECN_MARKED_PACKETS,
+  TCA_CAKE_TIN_STATS_ECN_MARKED_BYTES64,
+  TCA_CAKE_TIN_STATS_BACKLOG_PACKETS,
+  TCA_CAKE_TIN_STATS_BACKLOG_BYTES,
+  TCA_CAKE_TIN_STATS_THRESHOLD_RATE64,
+  TCA_CAKE_TIN_STATS_TARGET_US,
+  TCA_CAKE_TIN_STATS_INTERVAL_US,
+  TCA_CAKE_TIN_STATS_WAY_INDIRECT_HITS,
+  TCA_CAKE_TIN_STATS_WAY_MISSES,
+  TCA_CAKE_TIN_STATS_WAY_COLLISIONS,
+  TCA_CAKE_TIN_STATS_PEAK_DELAY_US,
+  TCA_CAKE_TIN_STATS_AVG_DELAY_US,
+  TCA_CAKE_TIN_STATS_BASE_DELAY_US,
+  TCA_CAKE_TIN_STATS_SPARSE_FLOWS,
+  TCA_CAKE_TIN_STATS_BULK_FLOWS,
+  TCA_CAKE_TIN_STATS_UNRESPONSIVE_FLOWS,
+  TCA_CAKE_TIN_STATS_MAX_SKBLEN,
+  TCA_CAKE_TIN_STATS_FLOW_QUANTUM,
+  __TCA_CAKE_TIN_STATS_MAX
+};
+#define TCA_CAKE_TIN_STATS_MAX (__TCA_CAKE_TIN_STATS_MAX - 1)
+#define TC_CAKE_MAX_TINS (8)
+enum {
+  CAKE_FLOW_NONE = 0,
+  CAKE_FLOW_SRC_IP,
+  CAKE_FLOW_DST_IP,
+  CAKE_FLOW_HOSTS,
+  CAKE_FLOW_FLOWS,
+  CAKE_FLOW_DUAL_SRC,
+  CAKE_FLOW_DUAL_DST,
+  CAKE_FLOW_TRIPLE,
+  CAKE_FLOW_MAX,
+};
+enum {
+  CAKE_DIFFSERV_DIFFSERV3 = 0,
+  CAKE_DIFFSERV_DIFFSERV4,
+  CAKE_DIFFSERV_DIFFSERV8,
+  CAKE_DIFFSERV_BESTEFFORT,
+  CAKE_DIFFSERV_PRECEDENCE,
+  CAKE_DIFFSERV_MAX
+};
+enum {
+  CAKE_ACK_NONE = 0,
+  CAKE_ACK_FILTER,
+  CAKE_ACK_AGGRESSIVE,
+  CAKE_ACK_MAX
+};
+enum {
+  CAKE_ATM_NONE = 0,
+  CAKE_ATM_ATM,
+  CAKE_ATM_PTM,
+  CAKE_ATM_MAX
+};
 #endif