Update to kernel headers v5.2.

Test: Booted a taimen, ran unit bionic unit tests.
Change-Id: I3522c59793bbcef98ea515996a481d92f14b8816
diff --git a/libc/kernel/uapi/asm-generic/sockios.h b/libc/kernel/uapi/asm-generic/sockios.h
index 0725dcc..afbc6ad 100644
--- a/libc/kernel/uapi/asm-generic/sockios.h
+++ b/libc/kernel/uapi/asm-generic/sockios.h
@@ -23,6 +23,6 @@
 #define FIOGETOWN 0x8903
 #define SIOCGPGRP 0x8904
 #define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906
-#define SIOCGSTAMPNS 0x8907
+#define SIOCGSTAMP_OLD 0x8906
+#define SIOCGSTAMPNS_OLD 0x8907
 #endif