Update to v6.8 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-6.8

Test: Builds and bionic unit tests pass on raven.
Test: Able to log in to an Android GO 32 bit device.
Change-Id: I0022cdb20c19726f526acaab2866f1e25794b77e
diff --git a/libc/kernel/uapi/rdma/hns-abi.h b/libc/kernel/uapi/rdma/hns-abi.h
index f9effb3..54a5672 100644
--- a/libc/kernel/uapi/rdma/hns-abi.h
+++ b/libc/kernel/uapi/rdma/hns-abi.h
@@ -81,4 +81,8 @@
 struct hns_roce_ib_alloc_pd_resp {
   __u32 pdn;
 };
+struct hns_roce_ib_create_ah_resp {
+  __u8 dmac[6];
+  __u8 reserved[2];
+};
 #endif