Update to v4.15 kernel headers.

Test: Compiles, boots bullhead/hikey960.
Change-Id: I118beb8b6cac0881b1270f9bf6981959297a41a8
diff --git a/libc/kernel/uapi/linux/qrtr.h b/libc/kernel/uapi/linux/qrtr.h
index 4040b4c..c0a4c72 100644
--- a/libc/kernel/uapi/linux/qrtr.h
+++ b/libc/kernel/uapi/linux/qrtr.h
@@ -20,9 +20,39 @@
 #define _LINUX_QRTR_H
 #include <linux/socket.h>
 #include <linux/types.h>
+#define QRTR_NODE_BCAST 0xffffffffu
+#define QRTR_PORT_CTRL 0xfffffffeu
 struct sockaddr_qrtr {
   __kernel_sa_family_t sq_family;
   __u32 sq_node;
   __u32 sq_port;
 };
+enum qrtr_pkt_type {
+  QRTR_TYPE_DATA = 1,
+  QRTR_TYPE_HELLO = 2,
+  QRTR_TYPE_BYE = 3,
+  QRTR_TYPE_NEW_SERVER = 4,
+  QRTR_TYPE_DEL_SERVER = 5,
+  QRTR_TYPE_DEL_CLIENT = 6,
+  QRTR_TYPE_RESUME_TX = 7,
+  QRTR_TYPE_EXIT = 8,
+  QRTR_TYPE_PING = 9,
+  QRTR_TYPE_NEW_LOOKUP = 10,
+  QRTR_TYPE_DEL_LOOKUP = 11,
+};
+struct qrtr_ctrl_pkt {
+  __le32 cmd;
+  union {
+    struct {
+      __le32 service;
+      __le32 instance;
+      __le32 node;
+      __le32 port;
+    } server;
+    struct {
+      __le32 node;
+      __le32 port;
+    } client;
+  };
+} __packed;
 #endif