Update to v5.10 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.10

Test: Built cuttlefish and flame images. Ran bionic unit tests on both.
Change-Id: I37ffc850970adcce1febbe2269c202632fce763a
diff --git a/libc/kernel/uapi/linux/virtio_mmio.h b/libc/kernel/uapi/linux/virtio_mmio.h
index a11de1c..a420fdc 100644
--- a/libc/kernel/uapi/linux/virtio_mmio.h
+++ b/libc/kernel/uapi/linux/virtio_mmio.h
@@ -47,6 +47,11 @@
 #define VIRTIO_MMIO_QUEUE_AVAIL_HIGH 0x094
 #define VIRTIO_MMIO_QUEUE_USED_LOW 0x0a0
 #define VIRTIO_MMIO_QUEUE_USED_HIGH 0x0a4
+#define VIRTIO_MMIO_SHM_SEL 0x0ac
+#define VIRTIO_MMIO_SHM_LEN_LOW 0x0b0
+#define VIRTIO_MMIO_SHM_LEN_HIGH 0x0b4
+#define VIRTIO_MMIO_SHM_BASE_LOW 0x0b8
+#define VIRTIO_MMIO_SHM_BASE_HIGH 0x0bc
 #define VIRTIO_MMIO_CONFIG_GENERATION 0x0fc
 #define VIRTIO_MMIO_CONFIG 0x100
 #define VIRTIO_MMIO_INT_VRING (1 << 0)