Update to v5.13 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.13

Test: Builds, bionic unit tests.
Change-Id: Ia4360ca4a2808206f64187dcb234d73c5752624b
diff --git a/libc/kernel/uapi/asm-x86/asm/vmx.h b/libc/kernel/uapi/asm-x86/asm/vmx.h
index 1771faa..6c07d4c 100644
--- a/libc/kernel/uapi/asm-x86/asm/vmx.h
+++ b/libc/kernel/uapi/asm-x86/asm/vmx.h
@@ -19,6 +19,7 @@
 #ifndef _UAPIVMX_H
 #define _UAPIVMX_H
 #define VMX_EXIT_REASONS_FAILED_VMENTRY 0x80000000
+#define VMX_EXIT_REASONS_SGX_ENCLAVE_MODE 0x08000000
 #define EXIT_REASON_EXCEPTION_NMI 0
 #define EXIT_REASON_EXTERNAL_INTERRUPT 1
 #define EXIT_REASON_TRIPLE_FAULT 2