Update to v5.5 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.5

Test: Boots on walleye.
Test: Ran bionic-unit-tests on walleye.
Test: Boots on cuttlefish.
Test: Ran bionic-unit-tests on cuttlefish.
Change-Id: I57387d3c31e0ba5ad125ffe291cecf365c7b374e
Merged-In: I57387d3c31e0ba5ad125ffe291cecf365c7b374e
diff --git a/libc/kernel/uapi/asm-arm64/asm/kvm.h b/libc/kernel/uapi/asm-arm64/asm/kvm.h
index 1c7ee65..efe1a9c 100644
--- a/libc/kernel/uapi/asm-arm64/asm/kvm.h
+++ b/libc/kernel/uapi/asm-arm64/asm/kvm.h
@@ -103,7 +103,8 @@
   struct {
     __u8 serror_pending;
     __u8 serror_has_esr;
-    __u8 pad[6];
+    __u8 ext_dabt_pending;
+    __u8 pad[5];
     __u64 serror_esr;
   } exception;
   __u32 reserved[12];
@@ -196,6 +197,8 @@
 #define KVM_ARM_VCPU_TIMER_CTRL 1
 #define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
 #define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
+#define KVM_ARM_VCPU_PVTIME_CTRL 2
+#define KVM_ARM_VCPU_PVTIME_IPA 0
 #define KVM_ARM_IRQ_VCPU2_SHIFT 28
 #define KVM_ARM_IRQ_VCPU2_MASK 0xf
 #define KVM_ARM_IRQ_TYPE_SHIFT 24