Update to v6.8 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-6.8

Test: Builds and bionic unit tests pass on raven.
Test: Able to log in to an Android GO 32 bit device.
Change-Id: I0022cdb20c19726f526acaab2866f1e25794b77e
diff --git a/libc/kernel/uapi/drm/msm_drm.h b/libc/kernel/uapi/drm/msm_drm.h
index d180f70..4d83744 100644
--- a/libc/kernel/uapi/drm/msm_drm.h
+++ b/libc/kernel/uapi/drm/msm_drm.h
@@ -36,6 +36,7 @@
 #define MSM_PARAM_CMDLINE 0x0d
 #define MSM_PARAM_VA_START 0x0e
 #define MSM_PARAM_VA_SIZE 0x0f
+#define MSM_PARAM_HIGHEST_BANK_BIT 0x10
 #define MSM_PARAM_NR_RINGS MSM_PARAM_PRIORITIES
 struct drm_msm_param {
   __u32 pipe;
@@ -63,6 +64,8 @@
 #define MSM_INFO_GET_NAME 0x03
 #define MSM_INFO_SET_IOVA 0x04
 #define MSM_INFO_GET_FLAGS 0x05
+#define MSM_INFO_SET_METADATA 0x06
+#define MSM_INFO_GET_METADATA 0x07
 struct drm_msm_gem_info {
   __u32 handle;
   __u32 info;