Update to kernel headers v5.2.

Test: Booted a taimen, ran unit bionic unit tests.
Change-Id: I3522c59793bbcef98ea515996a481d92f14b8816
diff --git a/libc/kernel/uapi/linux/vfio.h b/libc/kernel/uapi/linux/vfio.h
index b947abc..62cd970 100644
--- a/libc/kernel/uapi/linux/vfio.h
+++ b/libc/kernel/uapi/linux/vfio.h
@@ -114,6 +114,8 @@
 #define VFIO_DEVICE_GFX_LINK_STATE_UP 1
 #define VFIO_DEVICE_GFX_LINK_STATE_DOWN 2
 };
+#define VFIO_REGION_TYPE_CCW (2)
+#define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD (1)
 #define VFIO_REGION_SUBTYPE_NVIDIA_NVLINK2_RAM (1)
 #define VFIO_REGION_SUBTYPE_IBM_NVLINK2_ATSD (1)
 #define VFIO_REGION_INFO_CAP_MSIX_MAPPABLE 3