Update to v5.9 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.9

Test: Boots cuttlefish 64bit, passes 32 bit and 64 bit bionic unit tests.
Change-Id: Ib5503355b238ea75595538e63eb000c867d06ef7
diff --git a/libc/kernel/uapi/rdma/efa-abi.h b/libc/kernel/uapi/rdma/efa-abi.h
index 39fd55b..86cfac6 100644
--- a/libc/kernel/uapi/rdma/efa-abi.h
+++ b/libc/kernel/uapi/rdma/efa-abi.h
@@ -20,6 +20,14 @@
 #define EFA_ABI_USER_H
 #include <linux/types.h>
 #define EFA_UVERBS_ABI_VERSION 1
+enum {
+  EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0,
+  EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,
+};
+struct efa_ibv_alloc_ucontext_cmd {
+  __u32 comp_mask;
+  __u8 reserved_20[4];
+};
 enum efa_ibv_user_cmds_supp_udata {
   EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,
   EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1,
@@ -30,6 +38,9 @@
   __u16 sub_cqs_per_cq;
   __u16 inline_buf_size;
   __u32 max_llq_size;
+  __u16 max_tx_batch;
+  __u16 min_sq_wr;
+  __u8 reserved_a0[4];
 };
 struct efa_ibv_alloc_pd_resp {
   __u32 comp_mask;