Update to kernel headers v5.3.2.

Test: Builds and run unit tests on taimen/cuttlefish.
Change-Id: I6ebd8f179d159ac974555e8edca588083e8081b3
diff --git a/libc/kernel/uapi/asm-mips/asm/socket.h b/libc/kernel/uapi/asm-mips/asm/socket.h
index fe15ad1..d24c09e 100644
--- a/libc/kernel/uapi/asm-mips/asm/socket.h
+++ b/libc/kernel/uapi/asm-mips/asm/socket.h
@@ -93,6 +93,7 @@
 #define SO_TIMESTAMPING_NEW 65
 #define SO_RCVTIMEO_NEW 66
 #define SO_SNDTIMEO_NEW 67
+#define SO_DETACH_REUSEPORT_BPF 68
 #if __BITS_PER_LONG == 64
 #define SO_TIMESTAMP SO_TIMESTAMP_OLD
 #define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD