tools headers uapi: Update tools's copy of drm/drm.h

To get the changes in:

	d67b6a2 ("drm: writeback: Add client capability for exposing writeback connectors")

This is for an argument to a DRM ioctl, which is not being prettyfied in
the 'perf trace' DRM ioctl beautifier, but will now that syscalls are
starting to have pointer arguments augmented via BPF.

This time around this just cures the following warning during perf's
build:

	Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
	diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h

Cc: Adrian Hunter <[email protected]>
Cc: Brian Starkey <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Eric Anholt <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Liviu Dudau <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Sean Paul <[email protected]>
Cc: Wang Nan <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: acmel

tools/include/uapi/drm/drm.h

@@ -687,6 +687,15 @@ struct drm_get_cap {
  */
 #define DRM_CLIENT_CAP_ASPECT_RATIO    4
 
+/**
+ * DRM_CLIENT_CAP_WRITEBACK_CONNECTORS
+ *
+ * If set to 1, the DRM core will expose special connectors to be used for
+ * writing back to memory the scene setup in the commit. Depends on client
+ * also supporting DRM_CLIENT_CAP_ATOMIC
+ */
+#define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS	5
+
 /** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
 struct drm_set_client_cap {
 	__u64 capability;