Update to v5.15 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.15

Test: Builds, and ran bionic unit tests on flame.
Change-Id: I86901ea6d89fb0f7384b90a47bef35d194083c24
diff --git a/libc/kernel/uapi/sound/snd_sst_tokens.h b/libc/kernel/uapi/sound/snd_sst_tokens.h
index 85a99c7..bf012fa 100644
--- a/libc/kernel/uapi/sound/snd_sst_tokens.h
+++ b/libc/kernel/uapi/sound/snd_sst_tokens.h
@@ -97,6 +97,7 @@
   SKL_TKN_U32_ASTATE_COUNT,
   SKL_TKN_U32_ASTATE_KCPS,
   SKL_TKN_U32_ASTATE_CLK_SRC,
-  SKL_TKN_MAX = SKL_TKN_U32_ASTATE_CLK_SRC,
+  SKL_TKN_U32_FMT_CFG_IDX = 96,
+  SKL_TKN_MAX = SKL_TKN_U32_FMT_CFG_IDX,
 };
 #endif