Update to v5.11 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.11

Test: Built cuttlefish and flame images. Ran bionic unit tests on both.
Change-Id: Ie60337aafad4bda55af99b6c8fe9f56bf2fa787f
diff --git a/libc/kernel/uapi/linux/if_alg.h b/libc/kernel/uapi/linux/if_alg.h
index 7505f86..6530a16 100644
--- a/libc/kernel/uapi/linux/if_alg.h
+++ b/libc/kernel/uapi/linux/if_alg.h
@@ -26,6 +26,13 @@
   __u32 salg_mask;
   __u8 salg_name[64];
 };
+struct sockaddr_alg_new {
+  __u16 salg_family;
+  __u8 salg_type[14];
+  __u32 salg_feat;
+  __u32 salg_mask;
+  __u8 salg_name[];
+};
 struct af_alg_iv {
   __u32 ivlen;
   __u8 iv[0];