Update to kernel headers v5.3.2.

Test: Builds and run unit tests on taimen/cuttlefish.
Change-Id: I6ebd8f179d159ac974555e8edca588083e8081b3
diff --git a/libc/kernel/uapi/drm/drm_mode.h b/libc/kernel/uapi/drm/drm_mode.h
index 3f321d0..403c787 100644
--- a/libc/kernel/uapi/drm/drm_mode.h
+++ b/libc/kernel/uapi/drm/drm_mode.h
@@ -368,6 +368,26 @@
   __u16 blue;
   __u16 reserved;
 };
+struct hdr_metadata_infoframe {
+  __u8 eotf;
+  __u8 metadata_type;
+  struct {
+    __u16 x, y;
+  } display_primaries[3];
+  struct {
+    __u16 x, y;
+  } white_point;
+  __u16 max_display_mastering_luminance;
+  __u16 min_display_mastering_luminance;
+  __u16 max_cll;
+  __u16 max_fall;
+};
+struct hdr_output_metadata {
+  __u32 metadata_type;
+  union {
+    struct hdr_metadata_infoframe hdmi_metadata_type1;
+  };
+};
 #define DRM_MODE_PAGE_FLIP_EVENT 0x01
 #define DRM_MODE_PAGE_FLIP_ASYNC 0x02
 #define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4