Update to v5.16 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.16

Test: Builds and bionic unit tests pass.
Change-Id: I2522c4f2a0efb9f8a193e1f2d65868e478217502
diff --git a/libc/kernel/uapi/sound/asoc.h b/libc/kernel/uapi/sound/asoc.h
index c962603..eeb12b0 100644
--- a/libc/kernel/uapi/sound/asoc.h
+++ b/libc/kernel/uapi/sound/asoc.h
@@ -157,8 +157,8 @@
 struct snd_soc_tplg_private {
   __le32 size;
   union {
-    char data[0];
-    struct snd_soc_tplg_vendor_array array[0];
+    __DECLARE_FLEX_ARRAY(char, data);
+    __DECLARE_FLEX_ARRAY(struct snd_soc_tplg_vendor_array, array);
   };
 } __attribute__((packed));
 struct snd_soc_tplg_tlv_dbscale {