Update to v5.12 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.12

Test: Boots flame device and runs bionic unit tests.
Test: Boots acloud device and runs bionic unit tests.

Change-Id: I8ac107ce9d4978be3ef9517b90ad6ecafd06785a
diff --git a/libc/kernel/uapi/asm-x86/asm/kvm.h b/libc/kernel/uapi/asm-x86/asm/kvm.h
index 7740002..0d82c5d 100644
--- a/libc/kernel/uapi/asm-x86/asm/kvm.h
+++ b/libc/kernel/uapi/asm-x86/asm/kvm.h
@@ -111,6 +111,7 @@
 #define KVM_IRQCHIP_IOAPIC 2
 #define KVM_NR_IRQCHIPS 3
 #define KVM_RUN_X86_SMM (1 << 0)
+#define KVM_RUN_X86_BUS_LOCK (1 << 1)
 struct kvm_regs {
   __u64 rax, rbx, rcx, rdx;
   __u64 rsi, rdi, rsp, rbp;