Update to v5.7 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.7

Update the generate_uapi_headers.sh where the types.h file is now in
the right place, but kvm.h is not.

Test: Booted cuttlefish/bonito.
Test: Ran bionic-unit-tests on cuttlefish/bonito.
Change-Id: Ice9ce370a658e320b80f564b34a4431927fcf100
diff --git a/libc/kernel/uapi/linux/virtio_iommu.h b/libc/kernel/uapi/linux/virtio_iommu.h
index b08de57..b156ea3 100644
--- a/libc/kernel/uapi/linux/virtio_iommu.h
+++ b/libc/kernel/uapi/linux/virtio_iommu.h
@@ -26,18 +26,18 @@
 #define VIRTIO_IOMMU_F_PROBE 4
 #define VIRTIO_IOMMU_F_MMIO 5
 struct virtio_iommu_range_64 {
-  __le64 start;
-  __le64 end;
+  __u64 start;
+  __u64 end;
 };
 struct virtio_iommu_range_32 {
-  __le32 start;
-  __le32 end;
+  __u32 start;
+  __u32 end;
 };
 struct virtio_iommu_config {
-  __le64 page_size_mask;
+  __u64 page_size_mask;
   struct virtio_iommu_range_64 input_range;
   struct virtio_iommu_range_32 domain_range;
-  __le32 probe_size;
+  __u32 probe_size;
 };
 #define VIRTIO_IOMMU_T_ATTACH 0x01
 #define VIRTIO_IOMMU_T_DETACH 0x02