Update to v5.18 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.18

Test: Builds.
Test: All bionic unit tests pass on a coral device.
Change-Id: I5700813eec0fb0db55bee4d75b129400b7a239bd
diff --git a/libc/kernel/uapi/linux/pkt_cls.h b/libc/kernel/uapi/linux/pkt_cls.h
index 9fd89e0..58d8205 100644
--- a/libc/kernel/uapi/linux/pkt_cls.h
+++ b/libc/kernel/uapi/linux/pkt_cls.h
@@ -476,6 +476,7 @@
   TCA_FLOWER_KEY_ENC_OPTS_GENEVE,
   TCA_FLOWER_KEY_ENC_OPTS_VXLAN,
   TCA_FLOWER_KEY_ENC_OPTS_ERSPAN,
+  TCA_FLOWER_KEY_ENC_OPTS_GTP,
   __TCA_FLOWER_KEY_ENC_OPTS_MAX,
 };
 #define TCA_FLOWER_KEY_ENC_OPTS_MAX (__TCA_FLOWER_KEY_ENC_OPTS_MAX - 1)
@@ -503,6 +504,13 @@
 };
 #define TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX (__TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX - 1)
 enum {
+  TCA_FLOWER_KEY_ENC_OPT_GTP_UNSPEC,
+  TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE,
+  TCA_FLOWER_KEY_ENC_OPT_GTP_QFI,
+  __TCA_FLOWER_KEY_ENC_OPT_GTP_MAX,
+};
+#define TCA_FLOWER_KEY_ENC_OPT_GTP_MAX (__TCA_FLOWER_KEY_ENC_OPT_GTP_MAX - 1)
+enum {
   TCA_FLOWER_KEY_MPLS_OPTS_UNSPEC,
   TCA_FLOWER_KEY_MPLS_OPTS_LSE,
   __TCA_FLOWER_KEY_MPLS_OPTS_MAX,